To further explain, I originally installed the free version for Tina, and then she purchased the monthly plan. When I log in using my username (vincetheprince) I see this:
As you can see, the Site ID for her site is SSSS2792 (Tupelo Pointe in the screen shot). If I then login with Tina's login and paste that site ID into her Premium subscription, it all seems fine until I return to the site admin where it still says license expired. The issue seems to be that the site ID is tied to a previous URL that we have formerly used for testing (https://vps72761.inmotionhosting.com/~red3surf
Can you fix this?