I use sexhit (part of the group ownership of them all). I did have a hold placed on my account a little over a year ago, talked with them, got the hold lifted, and all money paid. If you don't get paid, you probably have a hold on your account. Mine was b/c I sent 3 paid trials during a period and all 3 canceled in under 5 minutes. I see their justification for it. They used to convert very well, but they are no longer using their own merchant account, and using a 3rd party, so they don't convert nearly as well, but still $70 per free signup is good. The programs under the one roof are:
http://www.intergal.com/
http://www.bigbagsofcash.com/
http://www.sexhit.com/
http://www.sexhit-supercharge.com/ (the best of the 4)
ZoiNk
[Edited b/c I fucked up a URL]