Unfair charges despite signing a price lock deal. *******

I’ve signed up for a price lock plan of R1000 and paid my payment(R1000) this morning and my subscription is suspended. I logged an enquiry and was told I still owe R232. So if I signed up for a plan for R1000 and paid R1000, why is there another amount outstanding. When I try calling the call centre, there is no answe. I need this matter resolved today, else I will cancel the price lock plan along with my whole dealings with Multichoice.