We pay by DD, standard tariffs with the main suppliers in our area.
The thing that's always annoyed me is the 'change' they try to make to payments every 6 months or so, and I got to the stage where I couldn't be bothered with a phone call to argue anymore . . .
. . which led to a £27 a month gas DD, latest letter showed me as about £13 in debt I think, and a nice warning about price rises (and the winter months are coming).
I'm sure they'll soon send me a letter
demanding asking nicely for about £70 a month, which I'll then go ballistic over and offer £50 . . like it or lump it
We're not dual energy, no matter how many times it's been suggested by both Gas & Electricity suppliers, although it is a nice point to throw at whichever one is being awkward at the time . . as in, I can always change to dual . . . but not with you