Still not cancelled

I have sent in a cancellation form on the 4th January 2016.<br> Up till this day they are still sending me bills. I have moved out the premises already. <br> Landline is ***<br> <br> The only way to check if it is cancelled is by calling them on the number. I have done so and they said they are still processing and I need to call back again to check everyday to see if its cancelled. I am not doing that and neither am i paying the bills that I have requested to be cancelled. <br> <br>