It is not your money.

You GAVE it to the bank to use as they see fit.

After bankruptcy, after they pay ALL other creditors, even ones they mysteriously got a loan from the day before they closed, get paid off first, then you will get a proportion of whatever is left.

The bank has no legal obligation to give you "your" money back, in fact there are many legal entanglement where they are lawfully excluded from giving you your money. Including you wanting to do strange things with it.