I believe I'm in Fyber jail. I haven't seen it discussed on any forum. I am one of those players who uses Fyber's videos, app downloads, surveys and sponsored product purchases to acquire gold. In the past they've always honored their offers. In certain circumstances it would take a few emails to get the gold but you knew it was coming.
Recently they stopped awarding gold to me. If they would just end the whole practice of getting "free" gold I'd understand. But instead they tell you there is a technical issue preventing them fro, awarding your gold. Then when you press them a bit they tell you they already awarded your gold. You then show them their support page that shows they haven't awarded you your gold and they play dumb and go back to the beginning wanting to know what the problem is.
Im not mining an extremely large amount of gold. Maybe a hundred here and there. But they now owe me over 3,000 gold which combined with purchases and winnings could be beneficial to a team. I have 1 signature player I received in a trade and my levels are no more than 18 in any given category. I'm not using glitches or hacks. I'm taking what they offered and using it to my advantage.
I'm without a doubt going to play less. And it's because of Fyber not Glu.