Got a new credit card from your bank? Did your existing credit card expire? Are you getting a payment declined message while trying to place an order through DoorDash app? It could be because you might not have updated your credit card info in DoorDash app. In this article, we are going to provide step by step instructions on how to remove an existing payment method from DoorDash app. Please follow the steps mentioned below to remove an existing payment method from DoorDash app on your iPhone.