Contract Cancelled but still charged

Absolutely ridiculous. I app**** to have a contract cancelled on 28/12/2015 and the email from [Email Removed] to confirm the receipt of such request. Further emails indicated that it would take 20 working days to complete the cancellation, this would have been 26/01/2016. On 28/01/2016 i followed up and nothing was done. Only on the 4/02/2016 did Cancellations call me to cancel 27 working days after my application. I received a bill for R299 and logged a case, ***0, and was assured i would not be billed. Today a debit order for R299 was actioned by Telkom for a service that was cancelled late by you. I should not have been charged a cent!!! I want my money back.