Situation was something like this:
A week ago, when friendlies where able to play he challanged me. I didnt answer at all and after cup matches were generated i saw that challange to play friendlies is still available, and i accepted. I though it would show error, or any exception but when i opened my matches page, i saw that i have two games on the same time.
Thanks, that's very helpful... as far as I can tell, this is new information on the longstanding problem of how users can possibly get two games at the same time. Hopefully this will help the BBs close the loophole.