An overpayment can happen if there is an ineligibility notice, which disqualifies a claimant in certain cases where they have already received benefits. Report an overpayment.Complete an overpayment refund form to notify First Coast of an overpayment prior to receiving a demand letter. If the overpayment was accurate but you feel you should not have to repay the money then you can file a waiver. Overpayment begins from the date of entitlement. This chapter deals with state law provisions identifying, establishing, and collecting overpayments. All states have provisions addressing these matters.