1. Repayment failed when the repayment account number was received incorrectly: it is suggested to check whether the repayment account information is correct by querying the transaction records. If the wrong payment will be returned to the payer's account, it needs to be repaid again.

2. If it is an inter-bank transfer, it will generally arrive within 2-3 working days after submission. It is normal not to arrive within this time. I suggest waiting patiently.

3. If it is not the above reasons, it is recommended to contact the bank to solve it.