Cancellation service Plan.

At the end of October 2014 I started working for another company whereby I received a company vehicle. I then decided to cancel my service plan because my private vehicle is standing in the garage and I only use it for private purposes. MFC send me an application form to cancel my service plan which I completed and send back to them. I was then phoned by a consultant where they tried to convince me to keep the service plan. I then explained to them that financially it will be a much better option to cancel the policy on which they agreed and understood and informed me that the policy is now cancelled. It was cancelled at the end of November according to the letter. By the end of January I saw on my instalment that I am still paying for the service plan. I then enquired about the instalment where they informed me that there are no refunds available to me. I never wanted a refund but the people at the helpdesk don't understand. AS of then I am still paying for a service plan which has been cancelled. The lady that I spoke to was so arrogant and rude she didn't listen to me she kept on saying that I am not entitled to a refund. People working at your helpdesk is not trained.