Billing not resolved since September

I pay my accounts timeously and usually in advance. For 1 year I have been paying my subscriptions to DSTV Box Office. Multichoice was very happy to accept my money. The \apparently"changed systems and with no advice given that I do not have a DSTV Box Office account and should instead be paying to Multichoice Africa. I paid my September account on 22 August 2015. They cut off my account. I called and e-mailed them several times - many case numbers allocated. I paid for October on 22 September - they cut me off. I paid for November - they cut me off. Several undertakings were made by the call centre agents that a supervisor will call me back. No calls have been forthcoming to date. Should this matter not be resolved within 48 hours"