For an unliquidated debt, Multiple Choice even if the debtor pays the money agreed to the creditor may still sue for the balance it believes is owed. even if the debtor fails to pay a lesser amount as agreed, the creditor cannot sue the debtor for payment debtors cannot create an accord and satisfaction by sending the creditor a check with "paid in full" written on it once the debtor pays the amount agreed on by both the parties, the debt is fully discharged