Xbox payment?

I was just charging a 3 month Live Gold membership when suddenly a payment option was required. Now I would like to add my bank account (Raiffeisenbank). But how do I do that?

Create a PayPal account.

But why don't you use Xbox live prepaid cards instead of prepaid cards?

Only PayPal accounts with credit cards were accepted. What is a prepaid card? I have now added a picture to the question

Paypal or credit cards are accepted.

Sign up for PayPal. Your account will be linked there and you can then specify this as your payment source.

https://www.amazon.de/...007QWII7W/

These cards are also available in stores.