View the list of Sample Business Letters Acknowledgement of Request for Bid, Confirmation of Deadline Disclaimer: Be aware that some of these sample letters have legal, financial, or other implications. If you are not sure about the use of any letter, consult with an appropriate professional first. Acknowledgement of Request for Bid, Confirmation of Deadline Dear Thank you for your request for our bid on (project) This letter is to acknowledge our receipt of said request and to advise you that we will be submitting our proposal on or before (confirmation of deadline)