Property Tax Overpayments. Please call 1-800-772-1772 or your local field office and we may be able to process your waiver request quickly over the phone.File Form SSA-632, Request for Waiver of Overpayment Recovery. This page provides information about overpayments and the new flexible repayment options available to you. The essence of these instructions has been summarized in the following paras for guidance and better understanding. A missionary from his church sent him the letter.