how to add payment method
how can i change payment method if my previous phone number lose it already
Question marked as
See this support article:--> Change, add, or remove Apple ID payment methods
If you get no help, I suggest that you contact iTunes Store Support Team directly, using this specific link:--> Apple Support
(for any further question, look at the bottom of the above link, where you can contact them using "chat" or "phone" options).
Regards
Giulio