I've sent Crakrevenue plenty of chat traffic without a single problem. Tracking was fine, and conversions were either as good or better than what I was expecting. Chat traffic can cover a pretty broad range of traffic though so I can't speak to the quality of what you're sending, but generally speaking, I've had nothing but good experiences with them. I'm not sure what URL shortener/tracker you're using, but I wouldn't rely 100% on them. There's a couple of reasons your clicks might be showing up there and not on the stats. The fact that you've gone through 4 different sponsors in such a short time though doesn't bode well for you. You may need to take a look at your operation if you're looking for a 5th affiliate this quickly. I'm not saying it's all your fault, but that raises a lot of flags if you've worked with 4 different places and 3 of them are scams, and the 4th (which is a pretty well established company) doesn't work either.