Cant pay for xbox overdue subscription!

I have tried everything to pay for a 9.99€ overdue subscription for xbox game pass. First thing i would say is i will not subscribe this again and i wont recommend it to anyone! I will pay it though.

The second thing is that not always is easy to find these forums because microsoft webpages crash or ..i dont know.

I assume my question is; how can i pay the subscription if the microsoft store does not accept the paypal account that was used prior to subscribe to it?

:)