The promotion of the first-generation certificate to the second-generation certificate is regular, not irregular, and the situation you mentioned is unlikely. .

Now you can go to the local taxation bureau with your identity Z to inquire about the specific reasons.

If someone has the same number as you, you can ask the local tax bureau to show your certificate, and then go through the relevant lottery procedures.

If there are other reasons, we should deal with them according to different situations.