Energy usage

Q. Can someone help? I have been out of the country with work for most of Feb, my house has been empty, only thing on was my fridge. 100%…
.yet i have used over £66 in gas…can anyone enlighten me?

Have you checked against kWh used.
Having been out of the country can I assume you did not send in actual readings and therefore estimates have been used. If the house is vacant Bulb would not know and use estimates for that month.