We are seeing cases of POS credits that appear to be done through Square. They are clearly fraudulent. The account holder comes in immediately and wants to take cash. What recourse do we have to block these transactions?

Do you have the ability to place a hold on these types of transactions?

We can, but that won't resolve the problem. Do the card rules allow the FI to dispute credits?

We can hot card the debit card to prevent anything further, but we appear to be stuck.with a hot potato.