Not satisfied

I upgraded my device on Thursday 7/12/2017 @ Vodacom Canal Walk on lower level .. Assistance in store was Ok .. I had to do a sim swop(as per store assistant) cuz my sim card of old device was to big and needed a smaller 1 she told the sim in new device would be active in 24 hours i waited 48 hours and nothing happened ..i called the customer care number and they told me that my sim swop was cancelled in store HOW AND WHY I REALLY DONT KNOW .. I do not have the time to go to and from stores for this as i live far from a mall!!!i called the store and i was told the lady who helped me would call me back 2day @6pm i waited no call @ 6.15 pm i called the store for a hole hour ..no one answered the call n calls kept disconecting i need this sorted out and sorted asap cuz i bought a new PHONE not a camera because currently thats all this phone is good for