Why is vodacom inconveniencing me so much, from the time I gave my phone in to now I truly believe vodacom has broken our contract

Why is vodacom inconveniencing me so much, from the time I gave my phone in to now I truly believe vodacom has broken our contract. I've been so inconvenienced to a point that this coming Friday I'm going to Europe and I still don't have my phone and I've reported my issue to deaf ears and *********** vodacom employees and its management's. Now I want Vodacom to free me from this contract so that I can move to a better network.