I also happen to receive wrong email. My application was with caseworker for more than 2 months (application received under old rules) and yesterday i got email reply stating
Dear applicant
Thank you for your e-mail. Your case is currently awaiting
consideration. We have received your urgent treatment request 06/01/2007
Regards HSMP Team
Here they are saying its not allocated to caseworker and I never requested for Urgent request. I dont know may be the poor fellow might have copy/pasted contents and hit reply on wrong email.
But listen hsmp28122006, by change have you sent urgent request on the same date.
I am asking because I am expecting my result to be out soon and I have asked for courier pickup.