That was a beautifully strung together set of multiple issues with nary a pause for breath. :-) Give me a moment to collect myself and parse them.
...
This document explains how to 'Change, add, [review,] or remove Apple ID payment methods' on an Apple mobile device, a Mac, or a PC; click here --> https://support.apple.com/HT201266
'If you can't remove your last payment method or use no payment method with your Apple ID' click here --> https://support.apple.com/HT203905
- If you are updating an old card and have ongoing subscriptions you may need to first add the new card and make it the primary payment method before deleting the old card.
Additional resources:
'Payment methods that you can use with your Apple ID' --> https://support.apple.com/HT202631
'If your payment method is declined in the App Store or iTunes Store' click here --> https://support.apple.com/HT203005
Please click on this link to learn "How to cancel a subscription from Apple" ➔ https://support.apple.com/HT202039
Note:
• "If you don’t see Cancel Subscription, then the subscription is already canceled and won't renew." An "Expires" date (instead of "Renews") means the current subscription will just run until then. "Resubscribe" is just in case you change your mind about having it end.
If you still have problems:
Click here ➔ https://support.apple.com/choose-country-region/media-services Select your country, then a product.
Or: Contact Apple for support and service --> "See a list of Apple phone numbers around the world."
Click here ➔ https://support.apple.com/HT201232