A business may request a refund due to overpayment of tax. The overpayment may be the result of an amended return, audit or more money paid than was owed.Follow the time limits given in your Notice of Overpayment. To ask for a lower monthly repayment amount, use SSA Form 634, the Request for Change in Overpayment Recovery Rate. In New York, unemployment recipients can be found guilty of fraud even if they thought their information was true.