That sucks but the solution that I have might not work for you since I am from a different country and so, follow what yamaneketo said.
Your local board can help you on how they're able to solve that.
He obviously let the bank knew that he is about to use money to purchase crypto., just imagine if crypto was ban in the country, it would put him in trouble already.
It served as a red flag for his bank and I nearly experience that before but, I didn't outrightly said that I am about to transfer into an exchange.
so it's advisable to ask them generally about them policy regarding cryptocurrencies.
That can be a double edged inquiry for him.