I have in past suggested that you avoid this MLM company. It is the MLM nature of it marketing that leads many of its representives to mislead, some more than others. It structures offers to lock customers into them. They often claim to the 'cheapest' but this is not true for all customers as depends on usage patterns, and often only if take bundle of services which won't be as good value when each compared or as overal bundle with what could get elsewhere over time.
Watch out for misleading graphs that don't label the Y axis, to exgerate the savings, which often don't compare like for like.
It was able to benefit during the price spike because it has a 20-year wholesale energy agreement with E.ON that hedges energy purchases against price volatility. That contract is valid until 2033. The Fuel Mix of this is not the same as E.ON Next sells to it own domestic retail customers. And one of worse of major domestic suppliers, for 1st April 2022 to 31st March 2023 the Carbon Dioxide emmisions (383.4 g/kW.h) from the generators they paid were nearly double the national average (199 g/kw.h g/kw.h).
I originally came across UW when reps popped up on forums. Often annoying just punting UW than offering advice openly on forum. But since then found a couple of UW reps putting in effort beyond solely suggesting swtich to UW to give really usefull advice and support to customer struggling to navigate issues with existing suppliers. On Facebook energy company forums I came accross Haps Sidu who has confront scammers and help customers with good advice beyond just pushing UW, and the other is Katie Miller who setup a Facebook group to help people with Total Heating Total Comfort metering mostly used in the Highlands of Scotland.
"UW are a rip off" "You don't save anything with UW unless you have absolutely everything with them." MM on FB
"The graph made by Utility Warehouse to explain the scheme has a distinctly pyramidal shape." review by Selectra