so the place is called Bull Bitcoin, a company from Quebec, but unfortunately it is only for Candians...it works using the lightning network. You buy bitcoin doing an e-transfer ( it is a common bank transferring p2p using e-mails as identifiers) and you can cash-out even paying bills (including credit cards). The great thing about it is that they don't hold the BTC, you create an invoice using your best BTC wallet and just use it there...So mostly they act as a middleman for FIAT -> BTC conversion. You will probably need to find something similar there! Just be careful with kraken, just googled possibilities in Germany and kraken is blocking germans lol. I also find a search result for Strike app not sure how it works.