Poor Service delivery by Samsung

My phone Samsung Note 3 had a problem, then I took it to Samsung repair centre in Pietermaritzburg. I went to check for it they gave it to me, they also told me that the screen has been removed and when we were checking if it is working okay, we found a knock on the camera. I sent it back to replace the camera, it stayed there for about 2 weeks. I went back to check if it's ready they told me, it's ready then I took it. I then tried to download and update applications from google play store, it did not want to download nor update. I went back to them, they told me that there is board failure so they have to replace the board with a new board. Then I booked it in again for the 3th time now. I went back to them to check for it. I took the phone, then I tried to download and update but it did not want to until the battery was flat. I plugged in a charger and it did not want to charge, it writes \battery temperature too low". Then I went to Samsung's head office in Bryanston"