Contract Cancellation

In December I logged a cancellation of a contract with telkom, case ***, I signed documents at the Telkom in middelburg, mpumalanga. at end of January the value of the contract was deducted. And also noticed that the amount will be deducted again at the end of February. Hen I called the Telkom centre they state that the contract couldn't be cancelled due to the fact the couldn't reach me on my phone. When calling the call centre they also stated I should re-apply for contract cancellation, which will take 27 days before being processed. I signed documents stating I want my contract cancelled. Therefore I would my contract cancelled.