planet pulse - Are they fake?

I have a member of the Planet pulse, a survey website that offers paid surveys to its panel members. I joined a number websites last year. Planet pulse is also such a website. They offered surveys in the initial period. They credited money in the form of pulses (100 pulse equals 1 US dollar). After the pulses reached 1000 they stopped giving survey invitations. A point to note here is that you can request money from your account only when it reached 2000 pulses. Now i am not getting any surveys and my chances of reaching 2000 pulses and eventual payout is low. Is this company a scam? a fake? a fraud?