Error in serial number ( Student edition)

Hi, I perched  a serial number for student edition. While installing it shoes following error 

QIOTE**

Your serial number does not entitle you to SOLIDWORKS CAM 2024. Verify that the number is correct. If your license is new, you may want to try again later. If you continue, you will still be able to choose the products you want to install, but you will not be able to download any installation files. You will need to provide a complete set of download source files or a DVD from which to install.

Click Back to check the serial number you entered or enter a new serial number. If you continue without a validated serial number, the Installation Manager will not pre-select the products to which you are entitled.

QUOTE**

I raised a ticket to support team , but no one is assenting. 

How can I remove this error ?  

Edu SOLIDWORKS