Word of warning: If you're switching energy supplier DO NOT use @EconomyEnergyUK - every figure they have come up with has been wrong, their final bills are a joke and there's an overall amateurish feel to everything they do.
@EconomyEnergyUK I’ve been on hold for 35minutes for the second time in 2 weeks. Still no response from my email to customer services. I’ve been charged twice for my electricity. #totallyunacceptable