In June, we issued a cashiers check on behalf of one of our customers to pay one of his creditors. The check was presented and paid in July. Now in October, the exact same check was paid again. We are assuming the check was captured electronically (remote capture) the first time and presented, then the physical check was presented for payment the second time.
What can we do? Can we return the second one as already presented/paid or is that going to be a problem because it's a cashier's check?