Yesterday I was playing on a map where I had ownership on but 2 players forcibly took the map from me and ignored what I had to say. The report function was not working at the time. Isn't this a violation of the map ownership policy?
That's correct. Its a bannable offence if you own the map and ask them to leave and they don't. In the future take a SS of the offence and report it under "Report Abuse" section of the forum.