The sample acknowledgement letters for receipt of payment provided below can be used as format templates for official and personal purposes. If you can't find your e-receipt, please check your spam filter.Learn what an acknowledgement receipt is and how to create one for your business (with a template and two examples). This document is a receipt acknowledging payment received from an individual or entity. You can file claims with us electronically or through the mail. We work to streamline the way we process claims. Gov or call 1(855)-HEA-PLUS (1-855-432-7587). The student has to complete the urine drug screening. B. Once the order is placed, the vendor will provide a receipt upon payment. Payment Request Forms. A2.