Hotmail has deleted some of my folders. Is there anything I can do to recover them?

I use Windows Live Mail (WLM) to backup my Hotmail folders and messages. On 11 Jan 2013 I was deleting some (nearly) duplicate folders in WLM, first moving any messages from the about-to-be-deleted folder to the remaining folder, so that all current Hotmail and WLM folders had identical names. I did not delete any Hotmail folders or rename them. What I soon discovered was that 5 important folders (with all messages) had been deleted from Hotmail (and none were in the Deleted folder). I had not accidentally (or purposefully) deleted these folders in Hotmail or in WLM. I had only deleted folders in WLM which no longer existed in Hotmail. Is there any answer to this mystery? Even better, is there anyone at Hotmail who can recovered them for me?