Just provide relevant evidence such as IOUs, IOUs or bank transfer vouchers directly to the lawyer and let the lawyer write it for you.
I also asked a lawyer to issue a collection letter on my behalf, and the other party returned the money to me. To be honest, the lawyer's letter was very effective
Let me share with you my method. ! Use Alipay or WeChat, search for "Paozhengtong" and select the business of "Lawyer's Letter", then select the required type and submit. Under normal circumstances, it can be shipped by SF Express that afternoon;