If you are a Demon ADSL customer, read on ....
In April Demon reduced their ADSL charges. However they have still been billing many of their customers at the old rate.
I discovered today that I had been overcharged since April and so phoned Customer Services. They agreed to reduce my bills from now on, but refused to refund the overcharge since April. I called Trading Standards at the local council and they said that they had had a fair number of complaints about this. Their advice was to write Demon a letter, sent recorded delivery, saying that unless I received a refund within 7 days I would commence court proceedings.
For the relatively small amount involved this would go to the small claims court, where there are no barristers and no court costs.