A complete notary acknowledgment includes the name(s) of the parties that the notary witnessed sign the document. What do you need to include in your donation acknowledgment letter?WITNESS my hand and official seal. Signature. (Seal). A notary public or other officer completing this certificate verifies only the identity of the individual. The sample acknowledgement letters for receipt of payment provided below can be used as format templates for official and personal purposes. (877) 713-6182 or mail it to the address listed above. Your computer must have the Adobe Acrobat Reader installed in order to view any of these documents. (877) 713-6182 or mail it to the address listed above. Please keep in mind that students seeking a second Bachelor's degree must fill out an undergraduate international application. Medi-Cal Letter Templates.