Multichoice Prepaid is a *******!!?

I have a PREPAID Dstv account with Multi choice, I didn't activate it in July because I was not going to use it. I called the call center 3 times to activate it in July after making a payment. I have been told that my PREPAID account will not be active for July because I owed money for June!! How??? Is the account not prepaid? They must stop advertising it as a prepaid account to get customers and then tell us stories when we treat it as such! I am highly disappointed in Multi choice as I have been using their services for years! I have wasted so much money calling to try and get someone to help and everytime I call I am out on hold for long periods while the agents look for their managers!!!