Poor Client service

I am trying to upgrade my contract at Makro, but according to Vodacom my p-score is too low to choose the contract that I want. I transferred my contract to my name in December and based on the salary I received then they did a period review. My salary has now doubled, but the period review department refuses to help me in reviewing my status. Now I have to wait 3 months before I can even think about upgrading. They are not very helpful and does not even want to try and help me to review my status so that I can upgrade sooner. I am thinking about cancelling my contract and switching to a new service provider once my contract expires at Vodacom as they do not want to help someone to stay with them. All I want is for them to update my salary amount and recalculate my status.