The "licence.lic" file within this installation contains an invalid

I had to reinstall to the latest version 4.3, but i get the following error

The "licence.lic" file within this installation contains an invalid product key

I have checked the licence center and the product key is correct along with the domain, i even download the license file again and re uploaded it but without success.

What can the problem be?

I even paid to have license reset but that did nothing so that payment was a waste of time.