Call Ends

<p>Two weeks ago my phone started ending calls as soon as I made a call. I have a Samsung Galaxy S7 Edge. I spent 2 hours at the Vodacom The Grove branch. After the Vodacom consultant and technician checked my phone, I was told to go to the Samsung Store in the same mall. My phone was taken in by Samsung, no loan phone provided for 6 days!!! When I got it back... Same problem. I was referred back to Vodacom!!! Samsung said it is not a phone issue. After they had my phone for 6 days and replaced my screen, battery, motherboard and gave me my back a empty phone with no contacts or my apps. Why were all these parts replaced??? I went back to Vodacom and they did a sim swop today, I just turned on my phone, the same issue.. Please can somebody help me!!!!</p>