Poor Vodacom Customer Care Resolution

I am a LOYAL Vodacom customer since 2003 and I am on contract now. I recently had my phone ****** in August 2018 but fortunately I was insured with Vodacom so they replaced it with an excess fee included ofcourse . BUT thats where the problem began. The phone they gave me has MAJOR network problems. Insurance approved me for a Samsung Galaxy A6+. The Friday 31 August 2018 i received the phone. i never switched it on but on the following day saturday 01 september 2018 i switched it on and it only worked for 2 hours picking up network. the next day on sunday i took it back to the store and was told it will be repaired as it was a software problem. Monday 3rd September 2018 i was called and told my phone was ready for pick up and repaired. so the next evening i went. it only worked for that evening and on wednesday same problem occured again. i kept calling vodacom customer care everyday to report the problem i had been experiencing but all i kept getting was that they can not help me and i must go to century city store to be repaired. that friday the 7th i went back and yet again they said they will look into it. everytime i go they say NO FAULT WAS FOUND. now the recent incident is when i sent it nd they kept it for about 7 working days and when it came back they told me that they had sent it to Johannesburg to be reviewed and they have come back with a finding that NFF (NO FAULT FOUND) but problem is i am still having this problem.i fetched the phone friday 21st September 2018 after it had been with vodacom for over a week. The next day Saturday the 22nd of September 2018 was the last time this phone worked and had any network pick up until today which is Tuesday the 25th september 2018. this means my life and business are on hold and i am unreachable at all for four days.i am disgusted to take it back YET AGAIN cause i know what i will get and i do not live close to canal walk store to be commuting there daily for an issue they not willing to resolve 1st or atleast 2nd time. i feel like this store and its managers are failing me handling this situation as i go to that store every second to third day since the 31st of August and yet not resolved. the agents are nice but managers attitudes i am appaulled with. i thought by now Vodacom would atleast have replaced this frustrating phone and given me another one or an equivalent but they keep telling me i do not qualify and dont state the reason as to WHY I DONT QUALIFY. i am INFURIATED with my service providers service because with all this happening i buy Data all the time but i do not have access to the internet at all and it finishes without me using it much. Basically now i am sitting with a phone that i have money being debit from my bank account monthly including insurance yet it does not wor****!!!!!!! vodacom is disgusting me at this moment and i have always recommended vodacom to people but htis time around i feel i have no value to them. nothing is being done to check if i am a satisfied customer or what!!!! i have complained countless times about this problem in a duration of 3 weeks and this should not be happening. I AM NOT IMPRESSED WITH THIS SERVICE WHATSOEVER.