Vodacom review: bad service delivery

So Lets start by saying I have been with Vodacom for years and years, apart from upgrading and having to either pay in or reduce my call time to get any of the latest phones which other providers don't do I don't understand how Vodacom intends to look after there customers. so I upgraded in 2017 May, couldn't get a Samsung S9 so I settled for the S8, sim card took 4 days to activate after receiving another sim card, dropped my phone a month later, rear screen cracked at the bottom, phone worked for over a year like that, suddenly the phone went off one morning after using it and placing it down to attend to a customer. I took the phone in to Vodacom New Market, they said it happens as a result of software, R250 and it will be okay, I booked in the phone and got a R9000 Quote for the rear cover only to sort out the phone, Vodacom then told me they cant do the software without changing the cover. I declined the quote and was told my warranty with Samsung has been taken away, I still get charged every month for insurance that doesn't exist, I then after a 6 month hold took my phone to a cell repair shop and they replaced the pc board (not water damaged but faulty) for a mere R1800, saying I should not have paid as this was not a user fault but a manufacturing fault, either way I paid and phone is working, so how does my S8 being quoted a rear cover to fix the phone and then unable to repair, get fixed by small shop for a small amount and Vodacom did not pick up that the pc board that was faulty or my fault, after they stated that the phone was opened and not repairable upon collection. i will be cancelling my contract this year April and rather move over to Telkom or Cell C, thanks for years of bad service and un trust .