Why is the loan account number different from the repayment account number?

Take China Construction Bank as an example;

The final figure of CCB's housing loan is the last four of the 26 accounts in the loan contract, not the customer's repayment and deduction accounts.

CCB loan customers received 95,533 loan reminder messages. The last four accounts mentioned in the SMS are the last four accounts of 26 accounts in the customer loan contract, not the customer's debit account. Please make sure there is enough debit amount in the repayment account.

The construction bank can negotiate with the bank to repay the housing loan.

The customer binds our current savings account with the agreed repayment account of the credit card (RMB account and foreign currency account, which support opening two branch accounts in the same account respectively), and specifies the deduction method (deduction according to the total repayment amount or the minimum repayment amount). Automatically repay all CCB credit cards in the name of customers.

On the morning of the due repayment date every month, we will automatically repay you. Please deposit the repayment amount into the agreed repayment account before 7:00.

Tips: The agreed repayment can be made in the same currency or RMB. If the deduction is not successful on the same day due to the system processing time difference and other reasons, CCB will make a supplementary deduction on the morning of the third day after the due repayment date, and the successful supplementary deduction is still regarded as normal repayment.

Personal Customer Homepage of China Construction Bank-Why is the account number prompted by personal loan SMS not my debit account number?

Personal Customer Homepage of China Construction Bank —— What is agreed account repayment?