Vodacom service sucks

Vodacom used to be my number one cellphone network irregardless of its affordability until recently, I went to eastgate and got a new M4 aqua on contract, process was sweet and short. My nightmare started when I got home, my new phone would freeze for hours then switch off and when i tried switching it on the battery would be dead i returned it the next day and they convinced me the charger was faulty only to get the same problem when i get home, I then took it this time i was furious and luckily it froze when i got to the shop and they refused to give me a new one, i was told i would have to wait for 14 days only after it's been assessed will i get a new one, like ***??? what do they still need to assess if they can see its freezing? ok fine i decided i was gatvol and cancelled the contract, which they didn't cancel right away but only a month later that resulting in another delay for me to get a phone. Finally when it was cancelled i decided to get a phone online which is supposed to be the most convenient way but no till today i don't have a phone and i can't get one in store because the online contract needs to be activated first mind you i ordered it 3 weeks ago.