cancel my contract.

This is an urgent appeal for someone to reply to my emails... I cancelled my data contract at the end of October. I only ever got a response from the cancelation department in December. They apologised. I expected to pay again at the end of November and I did. My account was then debited at the end of December and I reversed the payment. I phoned numerous times, went to Nicol way branch as well as Forest City branch. I was assured that everything was sorted out. At the end of January a payment went off again- this time it was double. I reversed it too. The same amount has subsequently gone off twice and I keep reversing it. I have called three times this week, sent emails to the following address [Email Removed] and they bounce back as the inbox is full. An agent gave me a managers email address '***' and I have got no response. What more can I do to rectify this? Do I need to put up a BILLBOARD on the side of the road to get someone's attention?<br> <br> Catherine Mullen<br> ***<br> [Email Removed]<br> <br>