diff --git a/resources/config/paystack.php b/resources/config/paystack.php
index 58d6563..e6d0d29 100644
--- a/resources/config/paystack.php
+++ b/resources/config/paystack.php
@@ -35,4 +35,4 @@
      */
     'merchantEmail' => getenv('MERCHANT_EMAIL'),
 
-];
\ No newline at end of file
+];
diff --git a/src/Exceptions/PaymentVerificationFailedException.php b/src/Exceptions/PaymentVerificationFailedException.php
index 39110c8..7886880 100644
--- a/src/Exceptions/PaymentVerificationFailedException.php
+++ b/src/Exceptions/PaymentVerificationFailedException.php
@@ -13,6 +13,7 @@
 
 use Exception;
 
-class PaymentVerificationFailedException extends Exception {
+class PaymentVerificationFailedException extends Exception
+{
 
-}
\ No newline at end of file
+}
diff --git a/src/Exceptions/isNullException.php b/src/Exceptions/isNullException.php
index fa14ac4..d90777e 100644
--- a/src/Exceptions/isNullException.php
+++ b/src/Exceptions/isNullException.php
@@ -13,6 +13,7 @@
 
 use Exception;
 
-class IsNullException extends Exception {
+class IsNullException extends Exception
+{
 
-}
\ No newline at end of file
+}
diff --git a/src/Facades/Paystack.php b/src/Facades/Paystack.php
index f0ef46a..8805f92 100644
--- a/src/Facades/Paystack.php
+++ b/src/Facades/Paystack.php
@@ -13,14 +13,14 @@
 
 use Illuminate\Support\Facades\Facade;
 
-class Paystack extends Facade {
+class Paystack extends Facade
+{
     /**
-   * Get the registered name of the component.
-   *
-   * @return string
-   */
+     * Get the registered name of the component
+     * @return string
+     */
     protected static function getFacadeAccessor()
     {
         return 'laravel-paystack';
     }
-}
\ No newline at end of file
+}
diff --git a/src/Paystack.php b/src/Paystack.php
index a3646a1..ec4e0ea 100644
--- a/src/Paystack.php
+++ b/src/Paystack.php
@@ -14,8 +14,8 @@
 use GuzzleHttp\Client;
 use Illuminate\Support\Facades\Config;
 
-class Paystack {
-
+class Paystack
+{
     /**
      * Transaction Verification Successful
      */
@@ -28,13 +28,13 @@ class Paystack {
 
     /**
      * Issue Secret Key from your Paystack Dashboard
-     * @var mixed
+     * @var string
      */
     protected $secretKey;
 
     /**
      * Instance of Client
-     * @var object
+     * @var Client
      */
     protected $client;
 
@@ -73,7 +73,6 @@ public function setBaseUrl()
 
     /**
      * Get secret key from Paystack config file
-     * @return  void
      */
     public function setKey()
     {
@@ -82,22 +81,26 @@ public function setKey()
 
     /**
      * Set options for making the Client request
-     * @return  void
      */
     private function setRequestOptions()
     {
         $authBearer = 'Bearer '. $this->secretKey;
 
-        $this->client = new Client(['base_uri' => $this->baseUrl,
-            'headers' => [
-                'Authorization' => $authBearer,
-                'Content-Type'  => 'application/json',
-                'Accept'        => 'application/json'
-        ]]);
+        $this->client = new Client(
+            [
+                'base_uri' => $this->baseUrl,
+                'headers' => [
+                    'Authorization' => $authBearer,
+                    'Content-Type'  => 'application/json',
+                    'Accept'        => 'application/json'
+                ]
+            ]
+        );
     }
 
     /**
      * Initiate a payment request to Paystack
+     * @return Paystack
      */
     public function makePaymentRequest()
     {
@@ -110,7 +113,7 @@ public function makePaymentRequest()
             "last_name" => request()->last_name,
             "callback_url" => request()->callback_url
         ];
-        
+
         // Remove the fields which were not sent (value would be null)
         array_filter($data);
 
@@ -120,18 +123,30 @@ public function makePaymentRequest()
     }
 
 
+    /**
+     * @param string $relativeUrl
+     * @param string $method
+     * @param array $body
+     * @return Paystack
+     * @throws IsNullException
+     */
     private function setHttpResponse($relativeUrl, $method, $body = [])
     {
-        if(is_null($method)){
+        if (is_null($method)) {
             throw new IsNullException("Empty method not allowed");
         }
 
-        $this->response = $this->client->{strtolower($method)}($this->baseUrl . $relativeUrl, ["body" => json_encode($body)]);
+        $this->response = $this->client->{strtolower($method)}(
+            $this->baseUrl . $relativeUrl,
+            ["body" => json_encode($body)]
+        );
+
         return $this;
     }
 
     /**
      * Get the authorization url from the callback response
+     * @return Paystack
      */
     public function getAuthorizationUrl()
     {
@@ -144,7 +159,6 @@ public function getAuthorizationUrl()
 
     /**
      * Hit Paystack Gateway to Verify that the transaction is valid
-     * @return void
      */
     private function verifyTransactionAtGateway()
     {
@@ -165,8 +179,7 @@ public function isTransactionVerificationValid()
 
         $result = $this->getResponse()['message'];
 
-        switch ($result)
-        {
+        switch ($result) {
             case self::VS:
                 $validate = true;
                 break;
@@ -275,8 +288,8 @@ private function getData()
     /**
      * Create a plan
      */
-    public function createPlan(){
-
+    public function createPlan()
+    {
         $data = [
             "name" => request()->name,
             "description" => request()->desc,
@@ -298,7 +311,8 @@ public function createPlan(){
      * @param $plan_code
      * @return array
      */
-    public function fetchPlan($plan_code){
+    public function fetchPlan($plan_code)
+    {
         $this->setRequestOptions();
         return $this->setHttpResponse('/plan/' . $plan_code, 'GET', [])->getResponse();
     }
@@ -308,7 +322,8 @@ public function fetchPlan($plan_code){
      * @param $plan_code
      * @return array
      */
-    public function updatePlan($plan_code){
+    public function updatePlan($plan_code)
+    {
         $data = [
             "name" => request()->name,
             "description" => request()->desc,
@@ -325,9 +340,9 @@ public function updatePlan($plan_code){
 
     /**
      * Create a customer
-     * @return array
      */
-    public function createCustomer(){
+    public function createCustomer()
+    {
         $data = [
             "email" => request()->email,
             "first_name" => request()->fname,
@@ -357,7 +372,8 @@ public function fetchCustomer($customer_id)
      * @param $customer_id
      * @return array
      */
-    public function updateCustomer($customer_id){
+    public function updateCustomer($customer_id)
+    {
         $data = [
             "email" => request()->email,
             "first_name" => request()->fname,
@@ -372,10 +388,11 @@ public function updateCustomer($customer_id){
     }
 
     /**
-     * Export tranactions in .CSV
+     * Export transactions in .CSV
      * @return array
      */
-    public function exportTransactions(){
+    public function exportTransactions()
+    {
         $data = [
             "from" => request()->from,
             "to" => request()->to,
@@ -388,9 +405,9 @@ public function exportTransactions(){
 
     /**
      * Create a subscription to a plan from a customer.
-     * @return array
      */
-    public function createSubscription(){
+    public function createSubscription()
+    {
         $data = [
             "customer" => request()->customer, //Customer email or code
             "plan" => request()->plan,
@@ -405,7 +422,8 @@ public function createSubscription(){
      * Enable a subscription using the subscription code and token
      * @return array
      */
-    public function enableSubscription(){
+    public function enableSubscription()
+    {
         $data = [
             "code" => request()->code,
             "token" => request()->token,
@@ -419,7 +437,8 @@ public function enableSubscription(){
      * Disable a subscription using the subscription code and token
      * @return array
      */
-    public function disableSubscription(){
+    public function disableSubscription()
+    {
         $data = [
             "code" => request()->code,
             "token" => request()->token,
@@ -431,7 +450,7 @@ public function disableSubscription(){
 
     /**
      * Fetch details about a certain subscription
-     * @param $subscription_id
+     * @param mixed $subscription_id
      * @return array
      */
     public function fetchSubscription($subscription_id)
@@ -442,9 +461,9 @@ public function fetchSubscription($subscription_id)
 
     /**
      * Create pages you can share with users using the returned slug
-     * @return array
      */
-    public function createPage(){
+    public function createPage()
+    {
         $data = [
             "name" => request()->name,
             "description" => request()->description,
@@ -467,7 +486,7 @@ public function getAllPages()
 
     /**
      * Fetch details about a certain page using its id or slug
-     * @param $page_id
+     * @param mixed $page_id
      * @return array
      */
     public function fetchPage($page_id)
@@ -481,7 +500,8 @@ public function fetchPage($page_id)
      * @param $page_id
      * @return array
      */
-    public function updatePage($page_id){
+    public function updatePage($page_id)
+    {
         $data = [
             "name" => request()->name,
             "description" => request()->description,
@@ -491,8 +511,4 @@ public function updatePage($page_id){
         $this->setRequestOptions();
         return $this->setHttpResponse('/page/'.$page_id, 'PUT', $data)->getResponse();
     }
-
 }
-
-
-
diff --git a/src/PaystackServiceProvider.php b/src/PaystackServiceProvider.php
index 2af3d27..ec2cc54 100644
--- a/src/PaystackServiceProvider.php
+++ b/src/PaystackServiceProvider.php
@@ -13,48 +13,46 @@
 
 use Illuminate\Support\ServiceProvider;
 
-class PaystackServiceProvider extends ServiceProvider {
-
-  /*
-   * Indicates if loading of the provider is deferred.
-   *
-   * @var bool
-   */
-  protected $defer = false;
-
-  /**
-   * Publishes all the config file this package needs to function
-   * @return void
-   */
-  public function boot()
-  {
+class PaystackServiceProvider extends ServiceProvider
+{
+
+    /*
+    * Indicates if loading of the provider is deferred.
+    *
+    * @var bool
+    */
+    protected $defer = false;
+
+    /**
+    * Publishes all the config file this package needs to function
+    */
+    public function boot()
+    {
         $config = realpath(__DIR__.'/../resources/config/paystack.php');
 
         $this->publishes([
             $config => config_path('paystack.php')
         ]);
-  }
+    }
 
-  /**
-   * Register the application services.
-   *
-   * @return void
-   */
-  public function register()
-  {
-        $this->app->bind('laravel-paystack', function() {
+    /**
+    * Register the application services.
+    */
+    public function register()
+    {
+        $this->app->bind('laravel-paystack', function () {
 
-          return new Paystack;
+            return new Paystack;
 
         });
-  }
-
-  /**
-   * Get the services provided by the provider
-   * @return array
-   */
-  public function provides()
-  {
-      return ['laravel-paystack'];
-  }
-}
\ No newline at end of file
+    }
+
+    /**
+    * Get the services provided by the provider
+    * @return array
+    */
+    public function provides()
+    {
+        return ['laravel-paystack'];
+    }
+}
diff --git a/src/TransRef.php b/src/TransRef.php
index 7899c89..7a166c3 100644
--- a/src/TransRef.php
+++ b/src/TransRef.php
@@ -13,16 +13,16 @@
 
 namespace Unicodeveloper\Paystack;
 
-class TransRef {
-
+class TransRef
+{
     /**
      * Get the pool to use based on the type of prefix hash
      * @param  string $type
      * @return string
      */
-    private static function getPool( $type = 'alnum')
+    private static function getPool($type = 'alnum')
     {
-        switch ( $type ) {
+        switch ($type) {
             case 'alnum':
                 $pool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
                 break;
@@ -55,7 +55,8 @@ private static function getPool( $type = 'alnum')
      * @param  integer $max
      * @return integer
      */
-    private static function secure_crypt($min, $max) {
+    private static function secureCrypt($min, $max)
+    {
         $range = $max - $min;
 
         if ($range < 0) {
@@ -84,10 +85,9 @@ public static function getHashedToken($length = 25)
         $token = "";
         $max   = strlen(static::getPool());
         for ($i = 0; $i < $length; $i++) {
-            $token .= static::getPool()[static::secure_crypt(0, $max)];
+            $token .= static::getPool()[static::secureCrypt(0, $max)];
         }
 
         return $token;
     }
-
 }
diff --git a/tests/PaystackTest.php b/tests/PaystackTest.php
index 9a007d3..04f7f5e 100644
--- a/tests/PaystackTest.php
+++ b/tests/PaystackTest.php
@@ -53,8 +53,4 @@ public function testAllPlansAreReturned()
 
         $this->assertEquals('array', gettype(array($array)));
     }
-
-
-
-
-}
\ No newline at end of file
+}