Know just how you feel Frances, we were paying £70.00 DD a month just for electricity, then got a letter saying we owed £195.00 and they were putting our DD up to £120.00 a month.
We have now changed suppliers, and the original one came back and said they could drop us to £40.00 a month to stay with them, sorry they had their chance, when I spoke to them re the rise in payments, they refused point blank to let us pay anything less than £100.00 a month, funny how when you cancel them, they can then offer you power at a lower rate.image
Sue