Cancelled line query - call centre hung up phone

Good afternoon. I went into your Canal Walk store early in January 2015 and app**** to have my line cancelled. I filled out the cancellation papers and was told that they would capture the application and cancel my line.<br> My line is still active and I am still getting billed, even though I no longer live at this address. I called your call centre on 10210, for which I held on for 45 minutes, I selected the \billing"option. Someone picked up and told me they could see the application to have the line cancelled had been made on 13 January 2015 but the line was not cancelled and they couldn't tell me why. I asked the lady if she could tell me why the line is still active and she hung the phone up on me.<br> <br> This is completely unacceptable. I would like to know what implications there are for your staff hanging up on clients - can you trace this call and why am I still paying for this line that I have no use of?"""