Well Neil, if some smart alec at one of these companies decides to clean out your account, you might find yourself cooking over that open fire anyway. It could happen by accident or deliberately. If enough people refuse the direct deduction thing they will have to find other ways to allow people to pay them money. We did have one once, but had the payment come out of a separate account, but that was a fixed amount. Long term we changed company and now pay everything via Internet banking. They will put pressure on you to do the DD thing, after all, the financial whizz kids must just love the idea of a regular cash flow that they can jack up at will to cover any shortfalls from their stock market gambling.
The cost of those smart meters should be covered by the saving on people driving around reading meters. When I was in the cell phone/mobile data business, that was the main selling point. Of course we were trying to sell the idea to the power providers.
John