I have the same problem, except I didn't forget it, I typoed it.
I still can login (from home) as that character, and have made several in-game help requests but have had no response.
If the character is lost, fine, it sucks, but oh well. If I can get it even just deleted, that would work too.
I only realised I had typoed my PW when I went to ~deleteself ******** and my PW didn't work!
I feel your pain, man.