I've no idea of how many hours I've lost in the past few years trying to deal with them. Continually charging 3 or 4 times what I should be paying and blocking any request to switch provider. Highlights from dealing with their complaints department include one guy swearing at me and another telling me that I needed to get my house rewired before they would let me switch. Been to the Ombudsman twice, both times my complaint was upheld. Recently moved house and they sent me a final bill of over £500. f**k knows where they got that number from but I just paid it to get shot of them. c***s