Request to pay delayed payment by installments
[Date] [Name] [Address] Dear [Name] We regret that we have been unable to pay your invoice [number] of [date] on [date] as was originally agreed. We apologize for this delay which has been due to [reasons]. We very much appreciate your excellent and prompt service which we have experienced over the past [period] and with this in mind would you allow us to settle this invoice by paying [number] checks for [amount] on [dates]. Please find our first payment enclosed. Once again, please accept our sincere apologies for this situation. Yours Sincerely [Your Name] [Your Title]