Why can’t make purchases from my iPhone

See if the Support page linked above this discussions area has helpful ideas.

• Change, add, or remove Apple ID payment methods - Apple Support

Or, Contact Apple Support for Help

If you see a message that says:

"Your account has been disabled in the App Store and iTunes," contact Apple Support for help.

(blue text is live link ~ specific to support help topic)

See if this applies.

If a message says 'Your account has been disabled in the App Store and iTunes' - Apple Support