Good luck with getting a suitable resolution.
I managed. Following Wapping's usual advice and also Wessie's usual suggestions (owe you both a beer or two) I ended up splitting the policies and insuring the HP2 with Swinton and the GS and DRZ as a brand new policy (0NCB) with Hastings.
I ended up spending pretty much the same as last year single multi-bike policy with BeMoto (that was unable to offer cover), so that is a good thing.
What I find funny is that, while underwriters complain that there is
high risk of theft in London and they don't want to have bikes garaged as a separate address because they are less monitored, they all flat out refuse to quote for Third Party only that would not make them liable for theft. I just gave up trying to find the logic in there

Also my GS and the DRZ are insured for a grand total of 5k with a fairly high excess. In my case getting the GS stolen would be more an issue because of the sentimental value of
that specific bike that forking out money to buy another one.
It's all good in the end, and the overall premium paid across two policies is more than acceptable (£1200) for three bikes. It just took
a lot of time and also insurers started getting a bit annoying towards the end because they saw that I ran a million quotes over a few days... that apparently is a bad mark, and I explained the situation. If it is difficult to insure a vehicle, at least don't give me grief if it takes me a lot of tries to find a suitable (decent) cover.
Funnily enough: I am considering buying the car I currently lease from work (refer to
this thread for the condition we suffer from

), so I got a quote with Admiral (my previous insurer from when I had my own car) to insure it expecting it to be obscenely expensive as it is parked outside... nah. Slightly less than the GS/DRZ policy with a much higher insured value.
I guess the issue is just bikes and Range Rovers
