Hillcrest vodacom terrible

So you enter into a contract for 2 years, for a new phone and your airtime, when the 2 years is up and your contract rolls over, you still pay the same amount as if you where to get a new phone. So basically the data and airtime I get is not the same value as I'm paying. I'm paying more for data and airtime. If was to put that money onto my phone and by data myself it would be cheaper. I don't understand how you can continue charging a customer the same price when the phone is paid off. Also to top it off I went into vodacom Hillcrest kzn and the service was terrible, I waited a very long time before I even got served, the lady was trying to sell me a phone I did not want! I wanted a Samsung she offered me a lower version of the phone I currently have. I asked about the Huawei, too get told they don't keep that brand of phone in stock but yet it's advertised in the paper, I got from there shop. The attitude that they displayed I would not recommend vodacom Hillcrest to anyone. This is not my first bad encounter with them. I will take my money somewhere else, I have been a customer of yours for over 15 years. Very disappointed