WGT has a certain demographic, probably male, probably married, probably over 40, etc... That's a lot of people competing for a limited amount of survey slots
If you are not successful with the surveys you are either the wrong demographic or coming late to the party.
If you want to maximize you chances of being accepted for the survey, one thing you can do, short of lying about your demographic, is time it better.
Don't bother with surveys on the weekends. By that point, you're the last in a long line of suburban married 45 year olds who are thinking about a new television.
Most of the surveyors will be in the U.S. East Coast time zone.
Mondays are crap because they're processing data from the previous week and weekend and they haven't had time to implement new surveys.
Try Tuesdays-Thursdays around noon EST for your best shot at a newer survey