If a check is sent to a party for a a partial payment with a note stating this is a partial payment and a payment will be sent every month until the amount is paid off and they cash it, can they after the fact send a letter saying they do not accept the terms and charge an additional fee? Or by cashing the check it serves as an acceptance of the payment plan?
If the note provided for interest, unless the final payment had a restrictive endorsement stating that it was in full and final payment, there remains money due.