For me it was not worth the time and efford. No reward.

I completed a number of surveys. I had enough reward points for a R100 voucher, but completed a few more so I could rather claim a R150 voucher. Just as I reached that point, I could no longer access my account. When I queried this with them, I was told that I have never had an account and that I have to create a new account. This after I spent quite a number of hours completing surveys for them.