Delay after delay

I went to Vodacom in November. I asked the gentleman who was assisting me when I would be able to get an early upgrade then he proceeded to look at my account and told me January. I then called the call centre and was told in January and asked if I could apply for a new phone, I was then told after several calls that I would have to wait until March as my contract had not reached 24 months yet and it was still my first contract. Later on in the same month I phoned to see when I would be able to order it and the I was told the same info as well as that I do not spend R800 or more on my contract so still I should just wait for march as I will have reached my 20 month date of my contract. It is now March. I phoned to ask if I could order my phone as I had waited for the date as told as well as I had paid my arrears for the month. On 6/03/15 I phone and I'm told that I can not get a early upgarde I have to wait until April due to the fact that the policy changed and now I have to spend R1000 or more on average to get a new phone. How long do I need to wait in terms of actually getting proper service or getting told the truth of when or how things work cause I'm tired of waiting.