Blocking players and reported still posting new in chat

I’ve reported the same names and blocked the same names numerous times, yet I change areas and the spam from people violating the terms and conditions of setting up an account are right back. Please fix it, not sure if you need to start banning MAC address or IP address, but I for one find it the worst part of the game. Perhaps make it cost real money to change your character’s name. I’m certain a fix is out there. Please fix it soon so I can continue to enjoy your product.