Bank's Receipt Doesn't Convince Bank Of Its Cash Deposit Mistake

A small store owner deposits $19,950 at her bank, and gets a receipt showing $19,950. Later she finds out the bank only deposits $15,450 into her account. Bank claims the teller made a mistake when the cash was deposited. This city-data forum thread was started by the son/daughter-in-law of this small store owner who is trying to figure out how to get back the $4,450. A scan of the receipt is included.

It's disturbing to see a bank disputing its own deposit receipt.