Greetings everyone. I have gotten some information back on this. As given to me: If you've received no gold from a victory over your opponent, Hearthstone detected an abnormal play pattern with your opponent that invalidated the match. It's not an issue with your account or a bug, and cases of this should be few and far between. Looks like this is currently working as intended. I hope this helps to clear up some of the confusion. --- Is it true ?
Just disable concede after a win and then go win all matches w/o conceding (about 10?), had it myself and I got it fixed that way. That's assuming YOU are the one who doesn't meet the requirements,