Tap your profile image at the top to open your account prefs.
ChooseLinked Banksfrom the list.
slide in your credit card details in the spaces provided, and then pressNext.

Cash App supports cards from Visa, MasterCard, American Express, and Discover.
It’s easy to pick the specific funding source you want to use for each transaction.
Pick the recipient(s) who should receive the money.
Tap the amount you’re sending, located at the top of the app.
Choose your credit card from the list.
TapPayto send money from your credit card.
Can You Use a Credit Card With Cash App?
If you still have trouble, update Cash App and take another crack.
Delete the app from your phone once your account is closed.