Vodacom bad service

I am a customer for over ten years. I have upgraded my account on 22 Febr with Qual from online department. I could have upgraded Jan already then i decided to upgrade. She never explained to me that i was still going to pay for the handset until apr. I have always upgraded my account before the contract and never had this problem. Why should i upgrade if i am going to pay for two handsets. This is real ridiculous and was never explained. Qual said it is in the terms and conditions but was never explained. Bad bad service from vodacom after so many years as a loyal customer. Bad service from Qual.