I have a small 3 bed terrace, myself and two teenage DC. I’m at home most days but other than a bit of TV and the kettle being boiled a few times I don’t use much electric during the day. I use the tumble drier maybe once a fortnight for towels. Washing machine is on every other day. We don’t have an electric shower- it’s heated from the hot water tank from the oil boiler. My electric is costing over £100 a month. My unit rate is apparently 22.58p on a keypad meter.
I was talking about it to my friend who lives a 5 minute walk away and is with the same electric provider but on a monthly direct debit. Her rate is 21.76p. She pays £45 a month. It’s her and a teen daughter. She works from home about half the week (so laptop plugged in) she washes clothes and uses the tumble drier daily, TV on in the evenings, has an electric shower. lots of cups of tea 
We were both shocked at the difference in cost.
Do you think there’s an error with my meter? Should/can I get my provider to come out and have a look?