No idea

I have called them 5 times in the last few days. Each time I got a different amount to pay. The last amount was R709. 02 and I paid it immediately. I received a sms to say that I need to pay an additional R99. The previous person told me it was R209. 02. The snapscan app says a different amount. The self service app has another amount. So if I pay the additional amount now then what will the next amount be???