Useless Cancellations Department

Early in October I provided 30 days' notice to cancel my account (line rental, ADSL line and data bundle). On the 17th of November I was billed AGAIN for another month's subscription. After a long battle (and a complaint on here) I managed to get the cancellation done... or so I thought. I have just been billed for another two weeks for the second half of December!? Plus I have been levied a late payment charge. I have been told I cannot speak to anyone in Cancellations (as apparently they only work via e-mail, which clearly they don't respond to). So let me make it clear - I will not pay another cent to this thieving, *********** excuse of a service provider. I have written proof of the cancellation request which I have now forwarded to you three times. Feel free to contact me if anyone in Cancellations manages to fix this mess one day.