We're sorry you're having a difficult time on our server. Typically speaking, we do not interfere in PvP related matters as long as no one is breaking the rules.
In situations like this, there are a number of ways to deal with the situation:
- Change what area of the zone you are questing/grinding in
- Change zones altogether
- Ask for help from other people in the zone
- Ask for help from high level guild mates or friends
- Log off for a short while and come back later
Now if the player camping you is whisper harassing you from an alt, that's a separate matter, but otherwise they are not violating any rules.
-Witcher