deducting the cost from account after cancelation

Hi There, <br> I have canceled my contract 1 month ago and my contract supposed to terminate on 8-Mar-2016 and now again they have deducted from my account.<br> last time I have communicated here and MTN told me it is on process but nothing happened yet!!<br> please see the answers from MTN and Reference number:<br> <br> <br> \ Hello yaghoob_h,<br> <br> Thank you for your post.<br> <br> We sincerely apologize for any inconvenience you may have experienced with our service.<br> <br> Please take note that cancellation request is required 30-90 days before the contract expires. The 2GB package will expires 2016-03-08. We have sent the request to the cancellation department to set up the cancellation request for the contract the reference number ***.<br> <br> If you require to convert the number to prepaid this can only be done a day after the contract expires and no 30 days are required.<br> <br> Kind Regards,<br> <br> Alice van der Merwe<br> <br> *** \"<br> "