So I've got the problem that whenever I enter my Twitch username and click on Update Info the text field where I just entered my username just goes blank again. Interestingly on the evga.de page which I looked at afterwards if it might work there, there isn't even a Twitch username field, just doesn't exist and when you go to the elite membership page (which ist a clickable option under community) it just says this page doesn't exist. So am I now descriminated from the EVGA Elite Membership programm because I'm from Austria or what's going on here? 

Maybe another browser? it's silly I know but sometimes things for example on chrome wont show up that let's say would show up on firefox

Seems like non-US accounts do not have the option to insert the Twitch account username

 
Moved to Software.

Try using on microsoft edge, I had browser issues with chrome and opera

microsoft

well yes, there are many ways:
1.Try the same actions from your mobile - after turning off wifi on it
2. Clear the browser cache and try again.
3. Change browser.
4. Try it with a friend or on a third-party PC
5. As a last resort, use a third-party proxy server

clean your web stuff and try in private mode (different browsers)

This is late, but you have to go from www.evga.com to eu.evga.com and then it will work