Oh well, didn’t seem right to me, a switched spur fitted a couple of inches from the bath but what the F do I know?
More than them, and more than their "qualified electrical company", it would seem.
This is an image of the relevant page in the current version of the Wiring Regulations:
And here are diagrams showing the boundaries of the Zones:
That FCU is in Zone 2, and that hasn't been allowed for as long as anybody here can remember.
You should pursue this, ideally. Not because it's dangerous - in reality it probably isn't, but because this is outrageous:
Thank you for your email.
We organised for our nominated qualified electrical company to visit the hotel to look at the switch in room 34 to which you refer. It was found to be compliant, RCD protected.
Our guest enjoyment and safety is always a priority to us. We do appreciate you bringing this to our attention.
Assuring you of our best intention at all times
That's either a lie, or their "qualified electrical company" isn't, and needs a severe kicking.
You can understand the hotel being reluctant to have it found to be non-compliant - they may have at least 33 other rooms like it which they'd have to fix.
If you do decide to pursue it, also write to the local authority, as they are responsible for H&S enforcement (would do no harm to cc the HSE), and if it's a chain, also head office. Always write the letters so that each recipient knows full well who it's been copied to - the manager there is probably more likely to sit up and take notice if he knows that the council, the HSE and his head office have also been made aware of the problem.