By including a per diem amount in the letter, the parties will not have to execute another payoff letter if the termination date. Please include a per diem amount in the statement.Please email this information to as soon as possible. A secured lender shall prepare and deliver a payoff demand statement to the person who has requested it within fourteen days after receipt of the demand. The Payoff Amount and Per Diem Amount quoted herein are effective through December 31, 2020. Customer: I Check the payoff letter and it does not have a per diem amount. Find the answers to questions about your lease, MyAccount and more GM Financial related questions. Per diem rates look-up Allowances for lodging, meal and incidental costs while on official government travel. The instructor will upload or link an electronic copy to the link on the Schedule of Classes on the.