Imagine you are booked into a 4 star hotel in western Europe On the first morning you find the shower and tap water to be stone cold...
On the way to breakfast you notice a printed sign in the lift, saying there is a fault with the plumbing and there is no hot water till the next day. This is confirmed by reception.
The next day comes and the water is stone cold but the signs are gone. You ask at reception and you told the fault isn't fixed.
On the 2nd night you check with reception on the way to the room. They confirm there is still no hot water and there won't be any tomorrow morning.
How much of a discount would you expect from 3 nights of no hot water in a 4 star hotel?