Bad, Worst, Pathetic Service from Price Lock Black Friday Special

I have experienced worst service with DSTV for the second time this year. I have app**** for black Friday Compact price lock special on the 28th of November and i was told delivery will happen within 7 days, it has been almost a month now i have been waiting. I followed up by send a text for a call back, they told me they will escalate the query. I even DM`d them on twitter as i cannot get through the Price Lock Department via direct calls, i was told my query has been escalated & noted a priority, it has been days today. I am getting annoyed and thinking i should cancel but do not know how do i even do that when no one is getting back to me. Already this application affected my credit score that i could have used in future to a competent creditor. I need reply ASAP as this is pathetic!!!!!!!!!!!!!!!!!!!!