Quite agree Recordman, I think that they like to try and give a “wow” factor and catch unsuspecting, usually, tourists out. When I checked out at a hotel in HKG recently, they took the charge I had to pay in sterling and it was £8.43. I handed the receipt back and asked to be charged in HKD, which was done with out question. When my bill arrived I was charged £8.24. A matter of pence in this case but could have been pounds!