Despite EONNEXT claiming nobody on a fixed rate would pay over the odds my latest bill tells me I would save money by moving to the SVR (next flex) - will definitely be ditching them once this is over.. my DD is also based on the original October price cap less the £66 and not the EPG less £66 and I bet I have fun trying to get them to sort that out..
Well, to be fair, the system may technically be correct. You fixed on the v19 plan which is higher than SVR...
What you need to check is what unit rate you are actually charged in your Oct bill when you get it. You may find it's adjusted on there.