How or where can i buy the xbox gamepass i have neither paypal nor a credit card how can i do this?

Direct debit is also a bit risky for me. Can a card be bought in stores?

At petrol stations, Kaufland and other shops

Are they for different periods of time? And do I enter this via the store or or where exactly?

And does not media market and saturn?

You can e.g. B. At gas stations, electronics and sometimes supermarkets ect. Buy prepaid cards that you can use to top up your Microsoft account.

These are available in different "sizes". This will give you a code which you enter so that the corresponding amount will be credited to you. You can then use it to finance the gamepass online.