gardenqueen on "Blog site redirect"

I recently purchased the professional upgrade and now my site points to a domain name purchasing site. I don't know why and I don't really know why and don't know how to fix it. I certainly don't want to pay for something I won't really get. This is the first major problem I've had with WordPress since I moved my blog here years ago. I'd really like some help getting this fixed. Anyone even trying to find my blog or visit it from a link is directed to this other site.
Blog url: http://gardenqueen.wordpress.com/