DSTV INTERNET PACKAGES AREN'T WHAT THEY SUPPOSE TO BE

MultiChoice internet isn't really whats marketed, I have 3 routers and when topping up it randomly selects any router and tops up, this has been going on for 5 Months and no one has been able to resolve it, I've sent emails after emails to the Exec Office, the CEO's office, Team Leaders and Managers but no one assists. Its no wonder the people are slowly moving to other options, I wouldn't recommend signing a 24 month contract and receive under rated products and service's. Even the managers that have received emails directly about this issue have ignored me, no one is responding. The incorrect router was topped up 3 times today and I wanted this reversed and my account rectified but no response, I paid a pro-rata amount yesterday the router didn't top up the pro rata amount but payment was made, I'm honestly not sure who else to contact if the CEO's office ignores my emails, which legal authority holds MultiChoice accountable? If the products are flawed and service not being fully rendered who can one approach because clearly no one has interest in handling customer service and customer experiance. For a customer who holds 3 packages with them and this is the service they willing to provide? Can someone tell me what I can do? I can't be paying so much money for such ********** service!!!!!!!!