I rang Octopus energy(on the 10th Dec) to get some information about switching to them, I tried to everything online though, National database has not updated our property address yet(if Octopus energy can work on it, please do!), so I couldn't do it. The operator Jack understood this very odd situation straight away and sorted out everything and simulated based on our current usage and so on. It ended up we save more than £60 a month at least next 12 months. We always wanted to switch as soon as this odd situation is over and we did it much earlier than we expected. We have heard a lot of Octopus energy has this excellent customer service and I experienced it today. Thank you Jack for your kind and professional help, we are happy customers.