Billing problem
my phone won’t let me download any apps because it says there was a problem with my billing address on a previous purchase, even though the information is correct
iPhone XR, iOS 14
If necessary, contact iTunes Support for assistance. See the Apple Support articles below for contact information.
Apple Support schedule phone call
If necessary, try Twitter
https://twitter.com/AppleSupport. People have posted it may take an hour or more to get a response.
