Since FF11, SE's GM is known for quick act on player harassment and it is pretty much same here.
If subject of ticket you submitted is related to player harassment, the GM usually respond within one hour and usually quick action on the suspect.
If it is something minor the GM will give you a warning and they don't put people in jail for minor verbal insult.
So in OP's case, he is very likely cyber stalking like creeping in someone's house where house owner is unable to get rid of.
SE takes cyber stalking as very serious offense and always immediately have their GM taking action