Yes, I think that's always been true with E.ON - except, of course, when one changes tariff every year or two. Mind you, one has to be 'careful' with their website. If one goes to the 'manage my DD', it defaults to the DD amount they are currently 'suggesting' (which, more often than not, is too high). If one does not keep one's wits about one, it's quite easy to accidentally clinic on something that 'accepts' that suggested amount. Mind you, one can change onme's DD amount on-line at any time (from about -20% to +40% of the 'suggested' figure) - so one can always correct any mistakes one has made!On the dd front, I have never had a supplier change my dd, they have only ever suggested I ought to revise it.
As for fools/mugs, as I recently wrote to JohnD, my staying with E.ON for years has not been without thought. Until this year, their prices have been quite reasonable and their annual increases quite small, so I have never bothered changing (although I have constantly 'looked' at the situation). However, the proposed increase this year is 10 times larger than in some previous years (and much larger than in any year I've experienced) - hence my 'enough is enough' approach this time!My costs also rises by around 25% with e.on, if I fail to switch before the end of my present contract with them. No surprise there - as said only fools fail to switch.
Kind Regards, John