Cell C makes it Impossible to Cancel Contract

My contract expires 28 December.<br> <br> I called the call center to place a Notification of cancellation. I am advised to call exactly one month ahead. Not acceptable! I go to the store to explain I won't be SA exactly 30 days ahead of expiry.<br> Blank stares. I explained until I was blue in the face. All I get is that no letter or any other means acceptable.<br> I have to call 30 days before and not a day earlier or later.<br> Seems to be Cell C is using tactics to keep the client tied down . Surely this is against the Consumer protection Act?73