Once again you're asking the wrong questions .... you should be asking why our energy prices so high ?
Why has the French company EDF increased prices in the UK but maintained them in France
How does Eon bypass the regulator ( it has separate production , distribution and billing company so that if the regulator tries to control one of them it just increases prices in the others
After being lumbered with a buyout of Npower and another company they formed EON.Next forcing their UK Customers to migrate and fund the losses acquired by the acquisitions. (Not the European customers )
en.wikipedia.org
But hey .... you got what you voted for .... it's called buyers remorse.