Subject : Dear Sir, We thankfully acknowledge the receipt of your cheque nNo. The certificate of acknowledgment (PDF) must be in the form set forth in California Civil Code section 1189.Discover the value of acknowledgment letters in confirming the receipt of deliveries. Use our free template to craft an effective, professional letter. Tell the court that the other party received a summons or other legal papers in a civil case that were delivered to (served on) that party. Click on the sample letter that may be used to acknowledge receipt of an applicant's resume or application. Court forms are available at California Courts – Forms. Select "Small Claims" from the pull down menu. This article and video will show you the information you need to write in each part of the certificate wording, and common mistakes to avoid. Original documents are not necessary.