Can you prove that you went to the labor bureau to complain about SMS and chat records?

Then I suggest you take the recording of your conversation with the company and find relevant witness testimony, work clothes, work-related records and work-related chat records. In addition, you can also consider complaining to the labor bureau before arbitration, and the labor bureau will intervene in mediation to consolidate the evidence. Anyway, all materials related to your work can be submitted to the arbitration commission as evidence. If necessary, Baidu can get to know us again.