worse service ever

I cancelled my premium subscription before 1 Nov due to moving to the DPP. I was billed incorrectly despite this cancellation. I only noticed this on 1 Dec. Since then i requested the refund. I have called the centre four times. Last ref no is ***0-i53. On all occasions I was promised a call back but never got one. I have also mailed DSTV and again no reply. In the meantime my budget is off by R600 and its either that DSTV has no intention of paying this money back or they are complelty incompitent. Thier call centre only has call agents to talk to, no supervisors, no abilty to call back, no abilty to even send a confirmatory email. I have waisted over R 100 in airtime on calls and the time in total was almost 2hrs. I thus demand my money to be paid back with interest and the money I have waisted in calls. If this does not happen within three days of this message I will escalate this matter and begin legal procedures together with a stronger media campaign to expose DSTVs ***********s and ******* actions.