Totally decimated my credit rating and life. Literally no idea where to start. I was switched to Scottish Power by OFGEM after the collapse of Extra Energy. I immediately switched to EDF with a DD amount of £89. So was with Scottish Power for 33 days during the switch, for which they sent me a bill for £224. Which is literally double the cost of our gas/electric any other given month that we have been in this property (4 years) and well over double our DD since with EDF and and we are currently £167 in credit with EDF. So I have written to Scottish Power by recorded delivery letter 6 times, the only ever response being another copy of a bill with wrong start and finishing meter readings, and impossible thing for them to have gauged, given they never approached the property for a reading after the collapse of Extra Energy and have never been on the property EVER. Now, after ignoring all my letters they have not only set a debt collector on me, they have also put the first ever Default marker on my Experian report, dropping my report 467 points, instantly taking my credit rating from "perfect", to "very poor". I am 47 year old very successful individual who can well afford the £224, but principles do not allow me to pay unjustified extortionate bills, seemingly plucked out of mid air. I have NEVER missed any payment for anything . Yet these people have literally decimated my credit rating over night. If I lived in Scotland, I would be at their head office door until this got sorted, although to be honest, I may take the trip anyway.