People questioning the amount, and saying that 'no-one could possibly use that much' that is the price for the amount of energy that, less than 2 years ago, cost about £100 a month, which most people could afford and were fairly happy to pay.
So unless people significantly reduce their usage, that same amount of energy will now cost around £350 pm.
Of course, a lot of people will choose or will be forced to cut back, but many might not until it's too late, when they get a bill after winter next year, and they've already used the energy so need to pay for it.
Definitely worth planning how to get through winter using less and having serious discussions with family members who light unoccupied rooms and spend longer in the shower than necessary.