***** & unable to cancel contract

on the 1st December 15 I forwarded telkom mobile my paperwork to cancel my data contract for the end of december 15 as required by them. I sent a further email 2 December and after 2 phone calls, I eventually received a confirmatory email stating they were processing. At the end of December they still deducted my debit order. During December I received no data and my account was suspended, neither the telkom mobile shop or call centre could tell me why or rectify this to give me data in December. I have since then made a further 8 calls to them, forwarded the emails again to escalated the issue, promised a reply within 24 hours and still a further 14 days later absolutely no feedback. Today I spoke to a manager who promised to escalate the matter. She promised to send me confirmation of the escalation within 20 min that was 4 hours ago. Still nothing from them. I have also received a further statement from them for the end of February and yet I have no connection.