I got all of my parts at micro center (of course not gpu) and I got micro center to build it because I didn't want to risk breaking the components. After I got it back I felt something in the PSU box. When I got home I opened it and they didn't use all of the wires, I know that you don't have to use all the wires for the modular PSU but they left out the PCIE cables for my gpu. The 5600xt needs a 8 pin and they didn't install it. What do I do?