Frankly, I think you should just shout at them as you pass and use someone else. Not easy if you're headed down Farmers Bridge though, so you either have to detour (I'd make the trip to Hawne Basin) else bite the bullet I suppose.
They were good once when round at Sherborne Wharf with the little chandlery, etc, and further back I hired from them in the 80s and found them great, but I've not found them at all helpful since they had the Fiddle and Bone and charged for water on what I'm sure I remember was a CRT free one on public moorings previously. Maybe I just caught them on a couple of off days and maybe I'm misremembering the waterpoint and moorings. If their web info is out of date bolleaux though, that's worse than useless and it perhaps speaks volumes.
Anyway, sorry I was a bit sarcastic back there Andrew - I hope you get sorted ok.