I worked with them for several years, everything was fine before. But three months ago they stopped paying, saying that they were checking the quality of my traffic. Yesterday I wrote to their support with a question how long will the check last, half an hour later I go and see if there’s an answer and I realize that I can not enter the account, "Your account has been blocked", that means that they just blocked me without paying my already earned money, without explaining anything, it’s even impossible to enter the account to write to support. After that, I wrote them vkontakte, they replied that allegedly a complaint from an advertiser, that I have a very poor quality traffic (extremely low percentage of redemption of goods), and for that they have blocked my account (but note that they have blocked me only after I wrote them a ticket, that is, if I did not write, then I could continue to pour traffic, and that advertiser complaints were before that does not bother them). Of course I don't know what happened to the quality of traffic, what was the percentage of redemption, of course they do not provide me any reports or proofs. But the fact is that I've been getting the same traffic for couple of years now (i.e. its quality shouldn't change much) in several CPA affiliates and this was the first time when some affiliate didn't like my traffic.