It may have been that the restriction was placed on you on a previous game and the message just now appeared. Do you noticed that the game is often aborted or you disconnect from the server without notice? If so, can you please let me know what browser and operating system you're using? Are you running any programs in the background? What type of connection are you using?
Thanks for the info :)
Anyone know why I keep getting block for 5 minutes everytime someone leave a match, and it was not even me. But I was blocked....