[user104658]

Luckily I discovered this week that my energy company has been massively over-estimating my electricity usage (we switched to them in October, the estimated reading on the latest bill was almost double what we've actually used in the last 5 months). We're slso not careful energy users at all... various computers/televisions are on all day whether someone's using them or not. Should really get on top of that. As for our gas usage it's extremely low, maybe £50 a month over winter and next to nothing over summer. So I don't think our increase will be too horrific once the fix runs out next year, so long as I can get them to accept that they're way overestimating our usage. Will proably just keep overpaying until then though for an extra buffer.