All my payment method declined. Why? Why? Why?

See If your payment method is declined in the App Store or iTunes Store https://support.apple.com/en-us/HT203005.

Search payment method is declined in iTunes or the App Store error

And see How to fix when your payment method is declined in iTunes or the App Store

https://appletoolbox.com/itunes-store-your-credit-card-was-declined-please-enter-valid-credit-card-information/#How_do_I_fix_the_error_ldquoThis_payment_cannot_be_processed_at_this_time_please_try_again_laterrdquo

If you need additional help, use this support link from the document https://support.apple.com/contact

You also can get Apple telephone support  for help in solving your problem using this link https://getsupport.apple.com/?caller=kbase&PGF=PGF63005&category_id=SC0245&symptom_id=23362  Be patient sometimes Apple support is closed to immediate phone support.

And here is how to contact iTunes worldwide support via text or chat using this link https://support.apple.com/choose-country-region/itunes After choosing your country, see the heading Tell us how we can help.

Perhaps this may help: https://support.apple.com/en-us/HT201266

You may also need to check with your bank if they do not allow payments.