Note: This form must be downloaded to your device in order to be filled out properly. Thank you for becoming a member of the Suffolk family!Here at your credit union, we're about more than just banking,. Group Contributions Acknowledgement Letter. We would like to extend our heartfelt thanks to all the groups for their generous contributions. An acknowledgment is one of the most common types of notarial acts, but it often confuses Notaries. Here are 5 steps to performing an acknowledgment. Thank you in advance for your anticipated cooperation in this matter. This guide focuses on providing an overview of resume and cover letter tips.