New R799 Explora deal billing woes.

I signed up for a R799 Explora deail, which I activated on 14 Feb 2015. Prior to that, I was on a DSTV Premium package with XtraView (R740 per month), which I cancelled upon activating the new package. I decided not to pay DSTV for the month Feb and I did expect some sort of pro-rata calculated bill. For reasons inexplicable to me, the debit order amount was R1038 at the end of Feb. I don't understand the rationale behind DSTV's \pro-rata billing".<br> <br> According to me"