The overdue house purchase bill is RMB * * * * * * (the specific address of the house is * * * * *), which will be paid by * * * bank mortgage, and this overdue bill will automatically become invalid after bank transfer. If the bank transfer is not enough to pay off all the house payment, the debtor will make up the balance in cash within * * days after the bank transfer. According to the debtor; Let both of them sign the IOU and press their fingerprints (right thumb) Time: