Two possibilities. 1. If you declare online, it is very likely that network failure or unsuccessful electronic transfer has affected your declaration. I suggest you check the bank balance to see if you can deduct tax. In addition, it is best not to make electronic declaration from 12 to 1 every day, which is easy to make mistakes. 2. If you go to the lobby to declare manually, the staff may not record your information. I suggest you take the report and ask. People come and go every day in the tax bureau, and the staff may be negligent.