Totally incompetent system and people. I waisted several hours, begging them to finally close my account after I uploaded my meter readings online and contacted them several times, Why or why not upload them both (gas & electricity) meter readings they sent me just the gas invoice, which I settled it straight away, but contacting them 2 times, and waiting several times till I was connected to the right department, telling and retelling my story to the third person, finally (I don't know how) yesterday I manage to finally speak with someone, got the invoice, settled it, then today I got another invoice for £1.29... to be honest as (having smart meters) they were always sending me an estimate, not my accurate usage. When I contacted them regarding this I was told yes, I have smart meters but for any reason, they are not communicating with their system... I'm extremely happy I get rid of them, and I honestly hope I will never ever have to be their customer as their system, their staff, their customer service representatives are totally equal to 0 (yes zero). As yesterday I succeeded to close my account (finally) getting my last invoice and settling it, today I got a call from a "manager" the lady leaving me a voice message asking me to call them back, which when did so (following the menus, making sure I choose the right one) was informed by the system that I cannot leave feedback either because I choose to not leave feedback, either I already left one... So so many wasted hours from my life... They just simply never showed that they care at least a little bit about me, not even when I informed them that I'm a key worker... left 1 star because unfortunately, it's not possible to leave 0...