Connection fee charged 3 times- refuse to assist

Despite the fact that I gave authority for MULTICHOICE to deduct my DSTV subscription via debt-order. They failed to do so and as result suspended my services for 3 times (due to overdue account). Despite having reference numbers of my query being escalated, and speaking to a team leader (Kabello) they refuse to return my calls or to assist in any way. How can MULTICHOICE charge me a re-connection fee if the issue is on their side?? This is absurd to say the least. I'M EXTREMELY DISAPPOINTED. I've logged numerous queries on their website, but have not received any feedback. This issue has been going on since December 2015.