@kriixone Welcome to the forum. Good to have you here and thanks for not shying away because most threads are in German. We are inclusive, so always feel welcome to post in English.
As @tinu rightly pointed out, as of right now there are a couple of ways to top up your account. Cash is still a difficult topic. While we know that many people are longing to see that feature implemented, it is rather costly (the service, I mean) and since cash is (very) slowly dying out, the implementation doesn’t have the highest priority (since there are so many features we are looking to release).
We’ll keep you posted in this channel as well [HEUTE] Barzahlen - aber mit dem Handy