Additional Charges on Contract

I recently upgraded my contract as per the SMS that you receive to say that your upgrade is ready. And everything ran smoothly until I checked my online Bill and see that I am now being charged for TWO devices because the apparently they allow you to upgrade early but neglect to inform you that there will be an additional charge on your account for \Device Payment"of your previous phone. I have never had additional charges like this on my previous upgrades and have always upgraded at the same time of year. The person that I dealt with at the Autopage Somerset West branch also neglected to warn me of the additional charges as I would therefore not have bothered upgrading now.<br> I find this to be absolutely ridiculous as I budget for a contract that is supposed to cost R499 a month and now am supp**** with a contract costing R661. <br> And now I called the customer care line only to be told that because I went to the store to do the upgrade that they cannot help me."""