Faulty Device Terrible service

I have a 5 month old samsung Note 4 which continuosly switches off ..I have booked the phone in twice with no joy and im left frustrated as i cannot use a R10000 device which suppose to be state of the art...Logged a complaint with Samsung yesterday 22/12/2015 and till now no1 bothered calling to sort my issue out. I took the device whilst in holiday to a PE samsung repair centre only to be told tue technician is not there and they do not have parts.... I am left highly frustrated with no1 willing to help sort this damn issue out.. I feel like throwing the device away as i am not able to use it...People please think twice when buying a Samsung Device...Frustrated Samsung User