It does exist, but on the hgihest levels – risk of getting caught is too big. Why would anyone risk being suspended for life for 10-15-20 thousand euros? I would never do anything like that because I think it is unfair, but the risk is enormous as well – thos caught are most often guys playing futures and challengers.
I was approached once, not directly, they were trying to feel the pulse: “How are you feeling“ and stuff like that. I figured out what was going on, so I just said that I had to go somewhere.