I have the same problem. Can't add a Visa card.

The bug still here on Xcode 12.5.1.

I have the same issue. Is it a bug of Xcode beta, or our implement?

This issue is still here in Xcode 14 RC. Do you guys know how to fix it?

How about this time, after two years?

I am having the same issue. The Pay upfront price doesn't appear when testing with a sandbox account.