Great product? **** hits the fan, no one can help

I have a Samsung S4, which was overheating so bad that when the screen is touched it actually burns your fingers and when the phone is opt to restart, it does so, but the screen doesn't respond, switches off and doesn't come back on again.<br> <br> Booked my phone in on 30/11/2015 at Samsung Smart Care Centre, Constantia.<br> Till now, I haven't received any feedback as to what is actually wrong with my phone or a quote. When you phone the call centre, 1 number doesn't work, and the other just rings. When I eventually got through, I was asked for my email address again (after it was already given when I booked in the phone) so that they can send me the quote. Nothing!!! When I phoned again after several attempts, I was told again that they don't know why the technician never sent me the quote and will request it again, needless to say still no feedback...<br> <br> Service is absolutely USELESS, don't understand why all these Samsung Smart Care Centres was put in place, if they just waste ones time and money with absolute no service at all. They might as well just close down. Personally, I won't ever buy another Samsung product or even recommend it to anyone.