PATHETIC CUSTOMER SERVICE

I renewed my MTN mobile contract last year April 2017 and upgraded to Iphone 7. Exactly 1 month later the home button cracked, FOR NO APPARENT REASON. Took it back, they said it was customer negligence. Bearing in mind that this is not my first Apple product, and the phone was not dropped, it was just the home button that was cracked, very strange. 5 months later the phone started switching off when updates are running, and would'nt go back on. At the end of October 2017 I sent the phone in to be repaired/quoted, just to find out 1 month later that the phone is still with the couriers, this was the last week in November. I was then told that they will have feedback in a week. On the 5th December, I received notification (they first and only communication) that the phone is at the store. I rushed from Bela Bela, just to find out that nothing was done because find my IPhone was on. Surely they could have told us this before the phone went in for repairs, and saved everyone frustration and misery. I called today, 30th January 2018, after not hearing anything just to find out that it will cost approximately R 4800 for the home button, and will still not guarantee that the phone will wor****!!!!! I am utterly disgusted by the service and incompetence of the staff and that one would that charge and address my problem. I honestly feel that this phone was a used store model, bearing in mind that I haven't stopped paying contract. VERY VERY FRUSTRATED AND STILL PHONELESS!!!