Canceled my ADSL line but still billed

On the 27 of January I cancelled my ADSL line and I was told it will only be cancelled after a month which was suppose to be February the 27.<br> <br> yesterday I check and see that I have been billed for this month as well I called their call center but kept on transfer from department to department. and end up with Rachel who just hello you speaking to Rachel and kept quite for 10 minutes and hang up.<br> <br> PLEASE CANCEL MY ADSL LINE ALSO I WONT PAY FOR THIS MONTH MY NUMBER IS ***