Hey @user-removed, welcome to the Spotify Community!
We hope you don't mind if we reply in English. It might be possible that you have two different accounts, so we'd recommend checking this info. Could you let us know if this happens on another devices?
In the meantime, we recommend you log out/back in with the username registered here. Also, we suggest to check your bank statement to see if there's a payment from Spotify.
Remember that we also have German support via email, Facebook and Twitter.