Worst customer service ever. Got a bill for £680 that no one seems able to explain to me, even though they adjust my payments monthly. Requested a technician to come and have a look to the meter reader and appliances (conveniently only available on the day the payment is due), booked it for the only date available and doesn't even show up! When I try to call and check what's happening, after 40' waiting, after a brief explanation - which they don't even let me finish - they transfer my call to an independent service that has nothing to do with the company and I'm forced to end the call. Twice. They not clear at all when giving you information or explaining your bill.