AVG does not recognise I've purchased full version of PC TuneUp

Hello John,
We are sorry that your AVG Tune up unlimited is shown as free version in your PC. Please try to reactivate AVG Tune up unlimited once using this link http://avgread.me/1HOjOxZ and check if the issue still persists.
Thank you.

I've purchased the full version of PC TuneUp and have spent the past 2 hours trying to make AVG recognise that I have the full version. I've reinstalled multiple times, I've logged out of and into my account, I've restarted, I've deleted everything and it is still telling me I only have the free version. Can someone explain to me what is going on because this is one of the most infuriating user experiences I've ever had with a piece of software.

Hello John,
We are sorry that your AVG Tune up unlimited is shown as free version in your PC. Please try to reactivate AVG Tune up unlimited once using this link http://avgread.me/1HOjOxZ and check if the issue still persists.
Thank you.