I would assume so. If you enter into a contract at X amount, then that is the amount you will pay for the duration of the contract unless it is explicitly mentioned in that contract, or atleast until the last month of the contract where a balls up with accounting happens and you get a +R1000 bill instead of the usual R299 (hopefully that gets fixed soon).
You would think that would be the case. But they increased the price of a bunch of peoples contracts after a couple of months of the last upgrade.
