Currently energy providers dishonestly pretend that poorer customers disconnect from their energy supply voluntarily, they call this "voluntary disconnection", however this is a lie, Nobody ever does such voluntarily it is forced on prepayment customers by the energy providers.
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With the ridiculous & unobtainable amounts of money energy providers charge for prepayment use, it's is simply a matter of time before somebody dies in the cold because of so called "voluntary disconnection", it's both dangerous & unsafe to millions & not fair on anyone to pay so much for energy at rates like £10 per day gas & £10 per day electric, the prices are out of control so we need to send a loud message to these energy companies, banning prepayment meters would force them to change.