I'm beginning to wonder if these price comparison websites are actually any good. We're currently with Igloo and and use the MSE energy club jobby to keep up to date with better deals, but when I checked a couple of days ago it told me that I'm already on the cheapest deal - pretty sure that Octopus was nowhere to be seen on my list of competitive tariffs. Eon were close iirc.
Ours has just gone up from ~£80 to £90 per month (electricity only, no gas to our village) for a small 3 bed cottage. It's probably gonna go up over the winter as I make an ill-timed moved towards more electric heating and less burning of logs, even though this year both daughters will be at Uni.