ITS GETTING WORSE BY THE MINUTE!

I'm a Customer with 3 three contracts at Cell C, I could not pay in the one month due to something that happened, i CALLED them told them about the situation, they moved my contracts to the collection department for what reason i don't know. i made a total payment to them that was due payable in TOTAL of R2345.95 for all amounts that was due so i'm UP TO DATE with all my CONTRACTS i'm due for an upgrade in 24 months now they want to tell me i can only upgrade in January 2 Months extra to see if i will be able to pay !!! so you think i'm a ******** ? WHY ? i called THIS morning to ASK one of the Call Centre Agents and i was advised my accounts are up to date and reactivated ! when i got the confirmation i went to the Cell C Branch to upgrade and i was surprised that the status of my account is YET not changed! SO I look like the FOOL sitting there and take me for a SH**T, fix your stuff and my status i PAY my bills and i DID so if i pay for something i EXPECT the same back SERVICE in this case the Power is in my hands because it doesn't seem that you take the power to keep your customers happy !!! DO SOMETHING ABOUT THIS !!! AND dont make me out to be stupid