Galaxy Note 4 - Poor quality and Samsung service

Got a new device with the contract in January 2015. Device started freezing and switching off a any given time, and the battery life was poor. By the end of July, it switched off and did not go on for almost 10hours, which I had to book in to be assessed at the Constantia Repair Centre, 4 days later I was sent a quote to repair the device for R9500, AS IT WAS LIQUID DAMAGED, which I know has not been at any stage been exposed to liquid. I went straight to their head office to voice my unhappiness, this was now on the 4th August 2015, I dealt with a line manager, who promised response by Friday, after it has been re assessed, today its the 13th August 2015, and after numerous phone calls to Samsung, I still await a conclusive report and proof of liquid damage. I have had to deal with 5 staff members including the line manager who first handled my complaint.<br> This is what Samsung South Africa has reduced its service levels to, after manufacturing a low quality, yet expensive device?