FAULTY BRAND NEW PHONE!!!!

Got a brand new Samsung S6 on 9 June 2015. I had to charge it every single day and then it got extremely hot while charging. I took it back on 15 June, they sms'ed on 16 June I must fetch it - nothing wrong with it. I was not happy but took it. I saw it was not fixed cos I still had to charge it every day. I took it back (as I was getting fed up with this) on 23 July - first they didn't want to take it as they said there was nothing wrong with it, but on my insisting they took it. They had it for 3 weeks and on 7 August they sms'ed I got fetch it. They had to repair the mother board and also replace the battery and Gerswin said \Its like a new phone now". I dont want a phone that is \""like new\"""