Suggestions for rephrasing:

Email receipts for bounty, pentest, and retest payments to hackers that are paid with a credit card are sent by default to team members with appropriate permissions. This feature can also be enabled for your program if you need receipts for other payment types.

Email receipts are sent to authorized team members by default when credit card payments are made to hackers for bounty, pentest, and retest payments. This feature can also be enabled for your program if you need receipts for other payment types.