Scottish Power's final, final gas bill - probably

We sacked Scottish Power as dual fuel supplier for our rental property in October after a fruitless afternoon trying to get through to a human being in their customer services dept. A colourful pie chart reproduced on the bill showed that out of every £100 charged, £9.00 goes on customer service, while only £3.00 is profit. I don't know what they get for all their money, but judging by the amount of time spent on hold, those customer service advisers must have the run of a comprehensively equipped bar and leisure complex. After telling Scottish Power we were leaving - and enduring a number of phone calls begging us to stay (so they can call out OK) - we were asked to supply final gas and electricity readings to our new supplier. The electricity reading was obviously passed on to Scottish Power, because we received a final bill, which was duly, though reluctantly, paid. The gas reading, however, was a different story. At the start of this week, we received a final estimated reading of £116.00. A rather high figure, I thought, given that it related to the period from 22 August to 14 October, when we were enjoying a pleasant Indian summer. On mentioning this to a Scottish Power customer services adviser I happened to catch on her way from the sauna to the poolside bar area, she agreed, and said a new estimated bill would be drawn up. Why estimated, I asked, to which she replied that they could not ask our new supplier for the final reading, given the time that had now elapsed. Today's post contained the second estimated final reading, in the sum of £75. Thinking again that this could be on the high side, I called our new supplier, where I was given the final reading from October straightaway, along with confirmation that Scottish Power could have asked them for it at any time. Of course, I could not provide the final reading to Scottish Power, because they are experiencing 'high call volumes at this time', so the final reading, along with a promise of verification from our new supplier, is awaiting the next Scottish Power customer services adviser who decides to read an email after the latest blockbuster screening finshes in their media viewing area. When estimated readings are plucked out of the air, and utterly ridiculous explanations given to perfectly reasonable questions, is it any wonder that the poor benighted energy consumer holds private energy utilities in such low esteem? Privatisation hasn't worked - and 'switching' isn't the answer; it merely serves to churn customers from one bloated supplier to another. Time time has come to renationalise energy supply.