Terrible attitude from "management" and no customer service s****s

I bought a Power supply from the central alliance systems pc shop in Mayville late in December 2017 and installed it. After using it for about an hour before it popped and fried my whole computer. Only thing using power was a simple core 2 duo motherboard and cpu with its ram and a dvd rom.

Returned it to them with no issue, they requested the package that i bought it with as i misplaced it in my house somewhere. I requested my money back as i already bought a new pc- on the day of taking the package to them the guy on duty said he will phone his manager who wanted to speak to me. I spoke to him but he (Archie) had the worst attitude toward me as a customer of them raising his voice toward me trying to make me understand that i will not be getting my money back.

This is not the type of company that one should ever support as their management level seems to require a lot of training in customer service s****s as there is a lack of that.

I have never in my life come across this type of unproffesionalism ever.