It is kinda curious, isn't it? I recently emailed Mark Baldwin to thank him for courtesy extended on a recent visit to MMC's workshop (to sort out a nasty "clunk" in my Roadster's back axle), and to confirm his diagnosis and attempted cure had done the trick.
Bearing in mind that my wife and I were there at the factory's insistence - for a job which could perfectly well have been sorted out by my dealer (as it turned out), I was surprised - to say the least - not to receive so much as an acknowledgement in reply.
Bizarre behaviour