Terrible Service

Been a loyal Vodacom contract holder for 6 years. Just upgraded my contract this month. I am unhappy with the contract as it does not give me enough minutes, so i would like to move to another contract with more minutes. they refuse to do this and indicate that i have to wait 3 months even though i am going to pay more on the new contract and keep my same phone. Seems like a win-win for them, but they refuse. How stupid is this company??? Do they comply with the consumer protection act as i am still in the first month of my new contract??? Is this the way you treat loyal customers that pay you high bills each month???