Withdrew $200 from ATM at my bank to save a trip inside.
The machine spit out 4 brand new $50 bills.
I went inside and asked for smaller denominations, tens and twenties please, they refused.
Your own bank, with your own ATM debit card in hand, refused to break a $50!
There is only one move: start the process of moving everything to a new bank or credit union which treats you better as a customer.