A $20,000 bank transfer can turn a routine payment into a frustrating waiting game. Your bank may stop the transaction because its fraud systems flagged something unusual, but that does not mean every $20,000 transfer can sit in limbo for as long as the bank wants.
The first detail to nail down is what actually got frozen. A wire transfer, ACH payment, check deposit, and an entire account freeze can fall under very different rules. That distinction matters far more than the dollar amount printed on the transaction.