Galaxy s6 edge smartphone

Upgraded my cellphone contract in July 2015. Only a couple of days later the phone started to give problems. I took it back to Vodacom and they exchanged it. Not even a year later, to be exact in February 2016 it started to get really hot and has no data connection. Took it in for repairs again and just got it back today. Same problem still there. Repair report.....NO FAULT FOUND ON DEVICE. How can there be no fault if the piece of **** get so hot that you can't even hold it in your hand? Samsung went from the leading product to the most **** product on the market. I hope that some one at Samsung South Africa see this and get back to me