unauthorised debit order

I signed up for this "special " monthly deal, but after being misinformed about one of the treatments, I cancelled 10 days after my membership. I then had to pay a month's cancellation fee which I did ,( why I dont know), and was told in writing that it was to be the last debit. Yesterday,lo and behold, I was debited yet again. I e-mailed customer services this morning, and have yet to receive a reply. The 087) ********** number has not worked the whole day, so I cannot even phone customer services, services which are clearly NOT provided. I see here on Hello Peter that debit orders are going through customer accounts without authorisation all the time, so this is clearly your modus operandi. If this is how you are operating, I am going to close my bank account so that you will not be able to debit me again, but only AFTER this refund has been processed. Can someone phone me IMMEDIATELY to rectify this?????????????