Letter of Acknowledgment for. Clark County Owned Electrical Service Modification.• Ask: The request or appeal being made in a fundraising letter. Often called "The ask. Forms 8283 and 8282 are required for documenting receipt of certain noncash contributions and subsequent dispositions of donated assets. How to write an Acknowledgement Letter? An easy way to start is to use this sample Letter of Acknowledgement Receipt Estimate Format now! You may need to fill out and attach a separate Notary certificate if there is no room on the document for your Notary signature. On August 2, 2000, SLD issued a Receipt Acknowledgement Letter (RAL) indicating that the Form 471 had been received.