Deemed contract rip off?

tunbridgewells18a

Completely useless advice from the solicitor! She wrote back "Given that you have never agreed to enter any such contract with Gazprom, then they would unable to raise proceedings against you."

I have been doing my own research and think my way forward is to send a complaint to Gazprom with a view of referring this to the gas Ombudsman and phone Ofgem complaints because (a) I have not consumed any gas as the whole supply is capped/cut off at the meter. There are no pipes from the meter to the house at all; (b) even if I am required to pay the Standing Charge, the Gas Act states that the amount charged cannot be 'unduly onerous' - this invoice is more than my gas usage for five months.

I understand the rationale of the deemed contract, and that it could be in the interests of both energy provider and purchaser, to provide a mechanism for a seamless supply on change of ownership as presumably neither party would want gas or electricity cut off and then reconnected. I think it does not cover my situation.

Do you agree with my line of argument or have I missed something in your opinion?