Annual payment miscalculated

Please look at this query's e-mail trail and explain why I am requested to pay R 2811 for the annual fee, or advise how you calculated this and / or why the expiry date is 12 March 2016 and not 12 April 2016. I have given up trying to get this resolved via e-mail.<br> <br> I paid the March subscription so that I do not get disconnected and have to pay the reconnection fee while you sort out the PAYU query - which by the way remains unresolved - equally frustrating. It appears that when Multichoice changes the amount due to 11 months, then PAYU allows you to make the full amount. Your staff don't know this!<br> <br> I asked to be changed to the annual option and received a call to say that since I had already paid the March premium, I would now have to pay another 10 months (at the existing premium, coming to R 2600. I then noticed that the outstanding amount is R 2811.<br> <br> If the period that I am covered for is until 11 April 2016 then it is fine, but if it is 11 March 2016 then it is a problem, because then I will not have received one month free. You charged me for 11 months and 3 days, but I had already paid up until 8 April. So my 12 months should end 11 April 2016.<br> <br> Please resolve.