No service at Samsung-getting the run around

I bought a new Samsung note 4 in November last year, and what a nightmare it has become. The fone dint work, they failed to repair it, and promised an exchange which still hasnt happened. their story changes everyday, and the latest one is that the request was declined because the requester didnt capture it properly. and there is absolutely NO communication between the requester and the approver. How is their internal incompetencies my problem? Seemingly they have contracted powercare to do repairs and requests for them, and Chris who does this simply doesnt care. You never find him, if you do he promises a call back that never happens. the rest of his team tell me only he can give me the information-they dont know. what kind of business operates like that?<br> <br> Samsung call center simply passes the bug to Powercare, who also blame Samsung. (Powercare is contracted by Samsung and hence are the same as their employees). Nobody wants to give me details to escalate this matter. This device costs 10K which i am still paying for, and Samsung couldnt care less. i now want my money back, and they can keep their device, (they have kept it since Nov after i bought it anyway). Who can help me?