Sorry, I should have added about the Tesla order, 2nd post, with my 1st post. Its my very next post, not exactly more over time. Merge them and that is all.
Those with a EV on order could move, not just those who already have an EV. There is no fraud at all, absolute nonsense. You wouldn't have told them you already have an EV and lied, simple tell them the truth, you have one on order. If they choose to move you onto the tariff knowing you haven't received the car yet, that is their problem.
As for back dating the charges, below is the t&c. Nothing about back dating.
If you sign up to our Octopus Go tariff but do not meet this eligibility criteria we can place you on an alternative tariff that we consider is more appropriate for your circumstances. We will let you know if we do this and advise you of the rates and terms that apply to the alternative tariff.