[solved] my v3 upgrade license key won't work on 3.3.0g

[nevis]

Hi,

I wanted to install this lovely piece of software again on my new PC.

Unfortunately, I have lost most of the older emails from the account used. What I do have though is an email from 10/2018, giving me my "upgrade license for TX16Wx 3.0.0".
This license key won't impress the current 3.3.0g in any way though when I enter it into the activation dialogue ("no valid product license found").

Any help appreciated. Because of the emails lost, the homepage and manual not giving any contact details, I have no current support contact though.
Thanks!

[nevis]

I am both confused and happy to report: it worked in my umpteenth attempt.
No idea why the buttons were not active previously but 90 minutes later, it all worked as expected. I did change the UI size, but do hope that was not the trigger
My apologies if I have wasted anybody's time.

[elcallio]

I'm guessing a network outage prevented you from contacting the licence server. Should in general give a different error message though.