Early Upgrade Suddenly not available anymore

I have been a customer with Vodacom for 11 years. I am on a red advantage contract and have an average monthly spend of more than R 800 as is required for an early upgrade. When I went to Vodacom Menlyn in March 2015, I was told I need to wait until 1 April 2015 until I can do an early upgrade. I went to Vodacom Menlyn to upgrade my phone today only to be told that Vodacom has decided not to allow early upgrades anymore. When this decision was made or why, no one at the store was able to tell me. <br> <br> I expected the store and Vodacom the promise made to me only to be told that an early upgrade is only a privilege given to customers so they have no obligation to do so. I do not merely choose to be a client because of the data, phone calls or sms's. That I can get from any Cell phone service provider. I have been with Vodacom this long because I have always been given the best service and because of benefits such as an early upgrade. I am extremely disappointed by the response from the store. <br> <br> When a customer is told that they can have an early upgrade and then later told that this \privilege"was cancelled it really leaves one doubting whether you are with the right provider. """