I suppose you used 1000 kwh a month with EE also and did not think to mention it? There is no easy route with SP you just have to keep ringing until you get a sensible answer. You can also write to firstname.lastname@example.org
Hi Ronco, yes £5000 is a lot for 7 months fuel. Have you supplied any readings? If the bill is entirely estimated a true reading could reduce it. You should be paying slightly more with SP than you paid with EE, say maybe 15% more, but no way two or three times more. What did you pay to EE in a typical year?
@Ronco Scottish Power should never have used an estimate as your opening reading. When switching, old supplier closing reads and new supplier opening reads are supposed to be validated by an independant third party precisely to prevent mistakes like this happening. I guess it's possible it happened because ExEn went bust there were no 'closing reads' done. That said, ExEn knew they were going to have to declare in advance of it happening - it didn't happen overnight.
Of course you're going to challenge the bill, but maybe base your challenge on the fact SP didn't follow procedure and get a reading from you when they took over your supply.