awsurvey, advercash, etc.

I joined AWSurvey and everything was going just fine until they decided to upgrade the site. When all was done, I could no longer log in. I received no response when I mailed the site administrator. Needless to say I didn't get to withdraw any money... So, if you ask me, I don't trust AWSurvey. I believe it is a scam and until someone shows me proof of payment I'll stick to my belief.