Demon’s billing system is abysmal. Occasionally, they failed to a regular payment on time but they always managed to catch up within a month.
When I cancelled my long-standing demon account to move to a more competitive supplier I was told that my account was up to date and that I should cancel my direct debit. I received the service termination letter and thought everything was OK.
I year later, I received a letter from a debt collection agency informing me that I owed Demon money!
I requested a statement and managed to decode the somewhat cryptic printout. It looks like due to an error in their system they “forgot” to take a payment earlier in the year so they tried to sneakily debit it a month after my account with them had been closed. Needless to say the collection bounced. They didn’t bother to write to let me know so they silently and unsuccessfully tried to collect the outstanding amount every month for over a year before giving up and referring the matter directly to a debt collection agency.
Checking against my bank statements showed that I owed them money and I paid it immediately. I received a letter informing me that all is OK and the debt collection agency had been informed.
You would have thought that would have been the end of it but no… I received a call from the debt collection agency a month later still demanding payment. They called me when I was in a supermarket and refused to speak to Demon without knowing the cheque number, date and amount paid. Just the sort of information I carry around with me when shopping!
Demon are totally useless. I know that occasionally things can go wrong, but reading around I get the impression that this level shoddy billing is happening to other Demon customers. (For example, search for "Demon 'forgets' to bill customer for four years")
I would recommend anyone to avoid Demon and choose a less stressful supplier.