Showmax & Dstv mobile problems

Poor customer service from DSTV mobile and Showmax. I know that Showmax was really better for a while until they went into a strategic partnership with DSTV. The customer service is fairly poor. I do not understand how one will pay for a higher subscription for 3 months and not allowed to download until your last subscription. Plus, you will be required to pay upfront to downgrade your account. This is utter madness and I cannot comprehend why I have to wait for a long time after Showmax & DSTv has already received my money. Can Someone please guide me in terms of where I can complain and be served properly because DSTv will not help me...