Gatvol of DSTV

I am really disgusted and disappointed by the service I received from Multichoice. I app**** for the Black Friday pricelock offer they sent me and everything was approved on 20 November 2020. The package was to be delivered in 10 days prior. I am still waiting but I am being debited already where there was said debit would start after delivery and installation. I have phoned numerous times and no one can solve this problem I even went to the centre in N1 city no luck either I messaged on Facebook numerous times last time was Monday 21 December and all they say is you will receive a call ASAP and apologies but no call back. Who can I contact to escalate the problem too, who will actually be able to solve it for me.