Why do rural commercial banks have to sign a dunning notice when they sue?

The rural commercial bank sued and asked to sign a dunning notice to urge repayment. The purpose of signing the dunning notice is to let the borrower know his arrears, clarify the repayment responsibility, and play a role in urging repayment to a certain extent. Even if the bank has sued the borrower, before the court makes a judgment, the bank can still negotiate repayment with the borrower in various ways to avoid further legal procedures and losses. Therefore, even if the bank has sued the borrower, the bank can continue to collect the arrears, including signing the dunning notice.