WHY DO I WANT TO SPEAK TO HIS MANAGER

Call center Xaphile agent this morning couldn't assist me to add on the system that my contract will come to and end Sept2018 so i wanted a reference number that this will be done for no extra charges to my account- when i took the contract out, Vodacom told me i can in 6 months before contract end phone them and cancel it for the normal cancellation date at no extra fees, so i dont forget to do this - i am in the 6 months bracket as explained to Vodacom to add to the system to close my number indefinite as per 24 month contract, then when i wanted to speak to his manager he wanted to know WHY??? i dont think i do need to tell him why i want to speak to his manager, i was on hold for 2 minutes with no music and then placed on hold for an extra 8 minutes and nobody came back to me ---- see why i want to cancel my contract? very unprofessional, AMAZING THAT ANYBODY CAN EARLY UPGRADE A CONTRACT - BUT TRY TO CANCEL .....