Known as 'rocket-and-feather'...
Thanks to
@Mike Reed's comment in
this thread I locked in a fix in Sept '21 to run for 2 years from December '21. My bills haven't changed since then as my usage is fairly low and consistent, however my DD dropped from £80/mo to £13 (total) when the Government Discount Scheme kicked in. My actual gas bill for the last quarter works out at £26/mo so the Government have been paying that in full plus most of my electricity bill on top which is nuts.
I'm not even sure there'll be a 'hike' to come the end of my fix on 17th Dec '23 as it's entirely possible energy prices could be back to something a little more sensible in another 11 months' time.