Unboxed deal monitor

Ordered a unboxed deal monitor which was only a few hundred rand cheaper then the same exact one which is brand new, as I thought I could save a few hundred by ordering the unboxed deal one as it must be in amazing shape/as new being only a few hundred cheaper. The monitor was very expensive, over 6k , ASUS 1440p 170hz Agon monitor. Once the monitor arrived, I was shocked to see how dirty the box and the actual monitor was. There was literally dirt on the monitor arm and dirt marks all over the screen. Had to wash my hands just from unboxing the monitor. Keep in mind this is a premium AGON monitor. I then realized that both the power cable and the display port cable was missing, which I was never informed about nor was it mentioned anywhere. I called them to report the missing POWER cable and display port, explaining to them that I can not use the monitor without the power cable. They asked me to just email them as they cant help over phone. So I emailed them, without any response. I then went to town to buy a power cable to test the monitor. And surprise surprise there is a dead pixel in the middle of the screen making the monitor almost unusable. I finally got a response from them 3 days later with just a link to file a return with bunch of terms and conditions. I simply do not trust them enough to send the monitor back after reading all the T&C ,so I will take the loss on myself, but will never shop with them again. The least they could have done is give the monitor and packaging a clean, or just check if it was working atleast, or bare minimum just provide a description that says no power cable or display cable, dead pixel in center of the screen.