Hello RRobert ,

# Stripe : User can update their card details from frontend Dashboard. We don't store credit card details in database. When user update the card details, we created customer profile and that customer id (card details not stored anywhere in system) stored in database to get further recurring payment.

# PayPal : user can update card details at their merchant account itself so it will not stored in payplans anywhere.

Let me know if you have any query or correct me if i misunderstood.

Thanks for understanding.