Here's mine, I've been with Octopus coming up two years now and I’m very happy with their service.
I've just seen a Martin Lewis trick where if you are a Shell customer being moved to Octopus you can use a referral code before your transfer date to transfer early and still get the £50 credit! Every bit helps to get through the winter 😊
https://share.octopus.energy/rust-skunk-5661