Samsung Note 8

I was told I have an upgrade on my phone. I went in on the 13/2/18 at 17h00 and upgraded to a Samsung Note 8. I Lebo kindly assisted me and transferred all info from loan phone Samsung onto the Samsung Note 8. That was completed by 17h55. I left the shop and I could feel how warm the phone felt. I thought it would cool down. It remained hot and I was too scared to use the phone. I got a call and spoke on my Samsung Note 8. It was still a little warm. I never charged the phone till this morning and felt it was warm. I then took the phone back on 14/2/18 at 09h00 when shop opened, I spoke to Lebo again and he said that the phone would have to be sent off to see what's wrong with the phone before they can give me a replacement or the same phone back. They then said maybe I should take the phone to VodaWorld to expedite a lot quicker. I lost it when I heard that. I told them I have started a new job and I cannot take time off as I've already taken time to sort this out. We then phoned Paco, CEO at H/O . Who told me to read the clause on the Consumers Act. I said that I have only had the phone for about 12 hours and that this should not be happening. I said I can understand if I had left it for 24 hours plus that they could treat me the same as in a 7 day period, but that was not the case. They were sticking to their story and would not budge in exchanging that phone for another. I left the phone with them as i had no choice in the matter. When i got back to my office I was then told how many of these note 7s have exploded. Please help.