We have been using Postini that was purchased through a third party, Vanquish. At one time Vanquish had their own spam filtering service but they transferred the service to Positini a year ago. We were paid up through June which is when Postini stopped working. I tried to contact Vanquish but could not log on to any of the forums that I had used in the past. Since their fee was higher than using Postini directly I tried to arrange directly through JustHost. When I tried to switch I received the following message, "Unable to install for (postini() - Domain already
in use with Postini. There was an error with the Postini servers, which
means your domain is probably already installed with a previous hosting
company. Please contact them to remove your domain from their account,
so we can continue installing". I can't remove the account because I do not know how to contact them. I tried deleting our account and I could not delete the administrator account because there was still a user and the user was the administrator. I was able to delete all other users. I tried suspending me as a user which was the wrong thing to do since I now cannot log on. Who can fix this?