You know, I am not a big player and it took some time to reach withdrawal threshold, even that I was using them also on other domains (adult). Kind of funny is that was doing just adult websites a few years ago, than I went aboard to study and I had no time for these websites, but I kept them alive and I was using ExoClick and after asking for my first payment (which is according to them normal) I was getting paid normally without issues.
But I had no time for long time and in meanwhile I have forget my username, email I used years ago and password and after contacting support, they wrote me back they will be happy to see me back and I can feel free to create a new account and just use www.domain.something for already existing domains under old my account.
Well, I am sure that they were happy indeed because now they have made decisions that they will keep everything what I have earned, after contacting them what is going with my payment they just wrote me that I did not meet expectations of their advertisers and they will close my account and any pending earnings will not be paid to me.
Of course, they find it out exactly at the moment when I asked for payment and not anytime in last 3 months.