Need help with pay

1M Ago
Hi, I recently transfered some money from my giro to my account but it does not show up as a payment option if i try to buy BTC. Can I not use this balance for purchasing crypto and if so, whats the cheapest way to withdraw it. I troed to find a proper answer online without success wich is why I now consult the allknowing reddit gods. I am trying to accumulate enough interest while buying more crypto and my term is ending soon, I wanted to add this balance to the BTC I already have and then start another term. Thanks for your responses!