Cancellation not being Honoured

I called on ***5 to cancel my contract as I was selling the vehicle.The lady I spoke to told me that I will be contacted by the cancellation department within 3 days for the cancellation to take effect and if the next debit order goes through on the ***5,they will refund me. My account was debited.<br> I called again on the 07th April as no one had contacted me and I was told that they will send through the request again to the cancellation department and I will need to wait another 3 days to be contacted. <br> To this day(15th April),I have still not received a call and I called again today and was told that the contract is still not cancelled and they will forward the request to the supervisors in the cancellation department.I asked to be put through to the supervisors or be given their contact number or email address and I am told that they cannot get hold of the supervisors in order to get their email addresses or numbers. <br> Why is it that when one needs to cancel a contract after honouring all the payments without missing a single payment for so long, we have so many issues yet if I had missed a payment then they would have probably cancelled my contract without hesitation.