Jeep Compass Air Conditioning Compressor

Good morning! I'd like to know if anyone can help me with what happened to me. My air conditioning compressor broke down, and since it couldn't be repaired, I had to buy a new one. I bought a Chinese one because the original cost $28,000, which seemed a bit expensive. Anyway, the thing is, this is the third compressor I've installed, and it keeps breaking down. I've replaced everything—the condenser, filter, and cigarette lighter valve—but it keeps breaking. The first two only lasted a couple of days. The last one broke down while they were charging it with refrigerant after doing a nitrogen pressure test and pulling a vacuum!
I hope someone has some ideas; I'd really appreciate it!
Thanks