Cannot Cancel My Premiums

I have been trying since 12 June 2012 to cancel my Marstercare / Early Bird appliance insurance. I have a slew of emails, with replies promising to sort it out. I even spoke to Mark Williams when he contacted me to let me know that Mastercare had taken over Early Bird. He also promised me that it would be sorted.<br> <br> It is now January 2016. By my calculations, they owe me 41 months of premiums that have been debited from my account. I have even gone so far as to stop the debit order, but they simply double debit as soon as it expires.<br> <br> I am now beyond frustrated with this company and believe that this is bordering on ********. I just want to get this company out of my life, and have them return what I feel has been ****** out of my bank account.<br> <br> Please can SOMEONE respond!