Can't get a response through Twitter Help Desk.

I've tried to ask for help on Twitter customer service and I do not get a response. Someone is impersonating me and using nude photos on your website. I report the problem and all I get back is that they issue is solved and a letter explaining how I can upload photos. I know how to upload photos, I need to know how to get this profile taken down. They are using my name and likeness as well as using photos that are inappropriate for your website. This is the link to the profile. It has been up for weeks and I can't seem to get anyone at Twitter to take notice. http://www.twitter.com/bobbi_bil