I have been a customer of OVO since the end of March last year. They have been faultless in their customer service.
I left nPower to join OVO and I am still sorting out the problems caused by nPower.
When I first switched the Gas meter reading that nPower gave OVO was too high therefore every time I gave OVO a reading they thought my meter was going backwards. Whilst this was sorted OVO stopped taking money for the gas and only charged me for electricity.
In December I discovered that when nPower changed my meter they didn’t change the national register to shower that my meter was now metric and not imperial units. The end result is that my gas consumption has been multiplied by a factor of 2.83 which was rather alarming when I discovered this in Dec/Jan.
Whilst this may take 15 weeks to sort out OVO are again not taking any payments for gas.
They are very good to deal with and when you call them you do actually speak to someone in Bristol.