Samsung J7 prime nonsense phone

I started booking this phone for repairs when it was 21 days, ever since it has been giving me problems, up to today I booked this phone 5 times same problem no one can tell what is wrong with the phone, I only use the phone for less than month then starts giving me same problem. These has costed me since I have to download applications after repairs, I stay weeks without phone while is been booked, This is really an inconvinience and nonsense phone. I will never buy Samsung in my life, it has taught me a lesson

Vodacom is refusing to replace this phone.