It doesn't matter if you can't use your ID number to directly check the admission ticket number of Band 4. However, you can use your ID number to check the results of Band 4. The specific process is as follows:

1. Log in to official website and China Education Examination Network, and click "China Education Examination Network" in the middle. As shown in the figure below:

2. On the right side of the opened page, click on the column of "Candidate Service" to find CET-4 and CET-6.

3. In the lower right corner of the opened page, there is a candidate service. Click "reissue certificate of achievement".

4. Click "Apply for a new grade certificate".

5. You can select the content to query in the opened interface. The above four options are required, and only two of the following three options need to be entered.