Samsung S6 in for repairs AGAIN

I am really getting tired of sending my phone in for constant repairs, this being one of Samsung's flagship phones. <br> <br> 1) Get the phone on contract 24/04/2015<br> <br> 2) 07/2015 start getting issues of the no LTE connection dropped calls, slow internet, intermittent response, take it to Vodacom and have it check, software is updated. However the update does nothing and the phone is still giving problems. <br> <br> Get told that I must use the phone for a week or two so that diagnostic info can be created because Samsung will not do anything without diagnostic history. <br> <br> 3) 09/2015 cannot go without using my phone, but can also not carry on using phone. Take it in AGAIN, PCB board is replaced. working fine. <br> <br> 4) 01/2016 phone starting to overheat, and giving issues again with no LTE signal. take it in software update is done. <br> <br> 5) 03/2016 take it in for the forth time and probably be the same thing, PCB must be replaced. <br> <br> Come now Samsung this phone is not even a year old and giving so much troubles, I am paying an arm and a leg for this beauty but if I don't get the problems resolved I am taking it up with the powers that be to have the phone replaced.