Communicate with the supervision company, notify the borrower, check the causes of quality problems, and identify the responsible person (specify the range of difference loss rate as agreed in the agreement); recover from the relevant responsible person as agreed in the agreement (require the borrower to make up the deposit within the reasonable loss range, and require the supervision company to make up for the loss beyond the reasonable range); if the loss is beyond the reasonable range and confirmed as improper work of the supervision company, report to the supervision company The company issues the risk reminder letter, puts forward the rectification requirements within a time limit, and stops cooperation if necessary.