Shocking service, feedback and response

My Samsung washing machine stopped working while still under its warranty. After logging a call with their call center, it took them nearly a week to respond. It then took another week before they offered a swap or refund as their technicians failed to come and repair the machine. Two weeks later and still no action from their side despite being promised several times that a new machine would be delivered shortly. It has now almost been a full month since the call was originally logged. I have wasted hours of my time on the phone with their call center, each time being promised that they would call me back but this has never happened. Needless to say I will never purchase another Samsung product in my life.