reFX - Nexus 2 updater is virus

I have bought reFX - Nexus 2.

https://refx.com/

Its a $300+ program and totaly trustworthy!

How do i let my avg trust it?

Hello Felix,
Please let us know whether AVG is detecting reFX - Nexus as threat. If so, please submit false positive to AVG developers at https://secure.avg.com/submit-sample . Our developers will check and contact you as soon as possible.
Thank you.