Hi all; my wife has advised me that we are getting a new bathroom suite!
she
would like one that has the taps in the wall rather than on the bath
itself.
The shop told her that we cannot do this at present as we only have a
Gloworm Ultimate 50 boiler and an immersion heater, and not a combi.

That makes as much sense as the sentence:

I like oranges, so I can't go on holiday to Switzerland.

If you're happy with your current boiler, and it isn't already running flat
out in the winter, you could always just replace your direct immersion tank
so that it runs off the central heating. If you're lucky, the old tank may
already have an unused indirect coil that you could use.

Christian.