Some tips:
1. Not really SR's fault (or QR, CR or whatever rewards site you use). It is the survey company (I'm guessing Greenfield or AMP). Once you click thru SR it is Greenfield's programming (or AMP) and out of SR's control.
2. Go very very slow. The surveys are on timers. Event that first screen about giving honest answers. Read it like you are a child. If you go faster than the timer it will boot you straight away.
3. Be on the lookout for trick/test questions...like, "Click the box all the way to the right." Or "Regardless of age, choose 39 in the box below." They throw those in to make sure you are reading and answering honestly.
4. Sometimes you just get the boot. They may be looking for a mid-20s single working gal, and the survey taker may be a mid-40s stay at home mom.
5. If you get to the screen it says no more surveys...you can still check back later in the day, they may have loaded more.
6. Always use your same email address & info.
It is worth it in the long run though. Since 2007 I'v made around $1,600 and I do very little shopping. I'd say maybe $150 of that is from shopping.