The only one I’m familiar with sends checks only if you have earned a minimum amount, and they have a two week lead time. If you haven’t received a check after waiting two months, you probably won’t – it’s a scam.
I myself am not participating in paid survey sites, but my bf is. He is currently at the thirty dollar mark on one and the website claims it’ll take two months to receive payment, in September. I’m just wondering why it needs to take that long for them to send you a check?
I don’t know which site he’s using, or how reputable any of these sites are, but it’s possible that the company is just trying to avoid paying him at all.