How can we stop other energy providers poaching our account?
Everytime we get one of those smug, annoying door step sellers from Scottish Power round we then get a letter from our gas and electricity supplier saying we've decided to leave them, even though we haven't and generally tell door steppers where to go (politely). It's happened 5 times now and we're sick of it. Is there anyone we can report them to and how can we stop this happening?