I have been very lucky to have had my fix 18 month exclusive v6, and still until February. Currently I pay £35 per month. My last meter reading was for 2 months (17th October to 20th December) and went from 8566 to 8893.
So based on that I use roughly 163 per month, so just under 2000kwh per year.
Eon have just offered me a renewal to Next Flex, at £191 per month. They have based this on an annual presumes consumption of 6247kwh, over 3 times what I currently use. If I contact Eon will then reduce this estimate, or will they charge me and refund me eventually?
My last full year usage in my previous flat was 1800kwh