Is Jiufuwanka's letter sent by SMS?

The lawyer's letter may be true, the purpose is to inform you, but it will not affect you, indicating that the platform has not sued you, so don't worry too much, but I suggest you contact the platform to negotiate repayment, indicating that you are willing to repay. After all, overdue will lead to penalty interest and liquidated damages, and will also affect your credit, so try to repay as quickly as possible.