Jarhosts Limited (Fraudulant Activity)

Last week, we received a letter [url] from Companies House (the UK entity which governs companies).

It was addressed to Exoware, with all the correct contact details, reminding me to submit statutory documents by a certain date or face a fine and/or prosecution.
It was sent to us, because apparently, Exoware is a director of Jarhosts limited. This is not true. We have never even heard of Jarhosts limited up to this point, but it appears they had ceased trading by the time we received the letter.

A few emails were exchanged between us and Companies House, which didn't really get us anywhere as they couldn't seem to understand our position, so I phoned them up myself. I got through to someone and explained our position and she informed me about the company and said they registered Exoware as a director of Jarhosts limited on 05/12/08 and they themselves promptly resigned from the company afterwards, so Exoware was the only remaining director.

After I declared that Exoware had no affiliation whatsoever with Jarhosts limited, she promptly forwarded the case to a department for dealing with fraudulent documents and said the company will dissolve soon and that we may hear from Companies House fraud department in the future.

So, my concerns are now at ease, but my curiosity still remains.

Does anybody know Jarhosts; how long they were around for, who they were owned by, or any relevant information about them? Or does anybody know of any reason that people would sign up a random business in the same industry as a director before bailing out of their own company? It all seems very obscure.