I know there are loads of threads about energy costs at the moment but I have noticed there are quite a number of people who think a fixed price tariff operates in the same way as say a monthly Netflix subscription.
With Netflix, you pay the same each month regardless of how much you watch.
With energy it is only the unit price you are fixing - your monthly bill will vary dependent on usage.
The terms ‘fix’ and ‘cap’ are causing a lot of confusion.