By including a per diem amount in the letter, the parties will not have to execute another payoff letter if the termination date. This payoff letter sets forth payoff arrangements for a loan facility among borrowers, guarantors, a syndicate of lenders, and an agent for the syndicate.Please accept this as my authorization to issue a payoff statement to. Through an effective date of . Customer: I Check the payoff letter and it does not have a per diem amount.