What should I do if I am called to the mobile debt clearing group to pay off the old debts?

I can only take time to go to the business hall to pay the arrears. I have seen such a situation. A classmate in my hometown works in a law firm. The local mobile company entrusted them to help collect the arrears and moved them to the list. If they don't pay the overdue payment, the notice issued by their lawyers will be seen directly in the court. . . I'm serious, not bluffing. At that time, it seems that more than 300 people were collected, all of them were GSM users (at that time, only GSM users had to register and open accounts with their ID cards, so they had to find GSM users to collect them). In the end, only a dozen people failed to return it within the specified time, and then all the defendants went to court. . . So if you are moved to collect the arrears, you'd better pay them back as soon as possible.