"as with other postings I switched from Economy Energy on October 23 2018 to E.on expecting the 2 companies to do the necessary as has always happened in the past. I am a serial switcher and have had no problems previously. However following a piece in the Daily Mail on December 19 I checked DD payments and Economy Energy took out payments on Nov 3 and Dec 3 to the tune of £150 so emailed a complaint to them the same day and cancelled the DD at my bank then got 2 emails asking why! The message I got in reply basically said as they hadn't worked out a final bill they could not do anything at this time! I was also in credit with my electricity account and due to them doubling my payment for gas 3 months ago the account for that must have been neutral. I am unsure of the correct situation because on my EE account page I can't find any balances beyond October."