i have lived in my house about 2 years now, i had never had an electric bill until recently, powergen sent me a bill on an estimated reading of £640 pounds or so.
thinking this rather high as i work away from home mostly, i rang them to query the bill. i told the girl it was an estimate and she apologised and asked me to take the reading while on the phone, which i did.
after a short time she told me the bill should have been for £753.27 ffs… me and my big mouth!