If this is affiliated with e-rewards, I find them frustrating - I used to get emails from them several times a day with survey links. Half of them would say "no longer available" even if I clicked within a minute of receiving the email. About half the remaining would get 5 to 10 questions in and then say I'm not the target demographic (and give little to no reward). I did the initial promo with Hertz but quickly found it wasn't worth doing regularly.