Samsung washing machine - won’t replace under warranty.

I recently bought a washing machine from Makro and ever since I bought the Samsung it came up with the error DC during the course of the wash cycle. I’ve called daily and had technicians out here but because it happens during the wash cycle and they only stay for five min they don’t see the error. I have sent a video. Called numerous times. Now they tell me the technicians say they can’t find a fault and there is nothing they can. So I bought a brand new machine that isn’t working and they say there is nothing they can do. This is ******* and absolutely disgusting. I have never felt so disgusted with service and after spending a lot of money on a product and it’s not working properly. All the guy on the phone said to me is that I am welcome to go to the consumer act as the technicians say there is no fault.