Wage Tax refund requests must be submitted through the Philadelphia Tax Center. You don't need a username and password to submit a refund request.Description: Use this instruction sheet, employer certification letter template, and cover page when requesting a nonresident Wage Tax refund. In this article, we'll show you how to write a refund request letter template that not only grabs attention but also persuades companies to act in your favor. Signatures from both the employee and the employer (not required for electronic filing). First you write your lawyer a brief letter requesting a refund and an accounting of any services and expenses he believes he deserves to be paid for. If entitled to a refund, please allow up to 8 weeks for receipt of your refund. NOTE: Form MV-700 may not be used to request a refund of sales tax. Customers are billed monthly for their natural gas usage. Customers will receive a paper bill in the mail every month before payment is due.