How To Write A Remittance Letter . This invoice is now [number of days overdue] days overdue and is becoming really problematic for us. In the late payment letter, politely ask the recipient to stick to the agreed. Payment Remittance Letter Template Free Samples , Examples & Format Resume / Curruculum Vitae from www.curriculumvitae-resume-formats.com Starting to write 1 make sure you state explicitly what the payment is for, or what payment/transaction the letter is in regard to. Provide payment details and options if available. Windham offers a letter of explanation sample for an address discrepancy: