And low level noobs call me russian, when I have worse day in my life and my pronounciation game is not up to par. Or when I feel like cursing out loud in Polish. Sorry to hear that man, but I have no other advice in that than to suck it up. It will happen. There are Community Ambasadors (CAs) out there to help, yeah, but this would probably benefit you the most - either not getting a fuck or getting good enough in game to erase their fucking faces off.
That being said, I don't usually poke fun at people based on their race or nationality, nor do I troll people on forum. And yeah, there actually is a player called MightyKeb.
Listen, I understand where you are coming from and your attitude. Just please, assume next time that someone who can boast with triple 45 by his account is usually not a massive cunt like that. Cheers, and have fun mate. ^^