I had the same problem around 8 month ago the guy didn't understand " stop go away leave me alone" , he went too far i bl him called GM and I get a "LOL okay we going to do something ...NOT " I hate the sorry arse excuse from GM I provided every info they needed.

My friends suggested me to server hop to change my name I sure did and come back and he knew it was me since I was on his friend list continuing to harassing me ingame and loadstone ..wasted money for server hop what a waste of money!!

Se need to fix this
*loadstone is bullshit anyone can check where u go no privacy at all
*friendlist whoever server hop must instadeleted

SE will never help that's final poor service you get from them