Cancellation of Contract

Dear Telkom, What do I need to do to cancel my contract?? I have followed the usual accepted business procedures...call in, completed the cancellation document and sent it in. I have the gone above and beyond...called in on the 6 and 14 December and re-emailed the documents to Brendan and Nomtobeko. And even more annoying I lost data because I toped up and then my monthly data was loaded. Please sort this out Michelle Joubert