In reply to Oujmik:
We went with Direct Line Select, which is their special service for poshos. Turns out to have no limit on bikes which made it much cheaper for us. Also has the advantage of covering antique firearms (!) and the cost of a round in the clubhouse if you get a hole in one at the golf.
In all seriousness, we went there because they were cheaper but have been impressed with the service - it's clearly more of an office than a call centre when you ring them.