VERY VERY Unhappy customer

Y is it so difficult to get a problem resolved with Vodacom - Firstly I have issues upgrading then the consultant offers "gives"' me something different than enquired and requested to just find out that they could've offered me a better deal, had it been me id try to give the customer the better/best deal possible to try and keep him/her but NO they just want to get the deal done which makes things worst im unable to get through to the call centre because I've "exceeded my limit" of calls what nonsense is that and im still due for upgrade. Do they first want to charge me for the new month before I may call again cause apparently im only allowed to call after the 2nd of the new month. all I need it just to upgrade but it seems to be so difficult. I am actually very disappointed at the consultant that assisted me for not offering me what I requested only to see the same deal I wanted advertised in papers. I actually feel like cancelling my contract with Vodacom.