Even though the crypto custody law falls under the German banking act, German banks are hesitant to give crypto firms bank accounts.
Source: https://www.coindesk.com/germanys-crypto-custody-law-hits-a-snag-startups-cant-get-bank-accounts
Germany’s Crypto Custody Law Hits a Snag: Startups Can’t Get Bank Accounts
April 7, 2020
CoinDesk
