ebay dealer irresponsible

Hi, my buddy just bought himself at ebay nen Crunch PZ 175.4, for amplifier times no comments please I know that not the bringer is but he wanted to have the stop and let himself be persuaded by me not to get anything else. The amplifier is also not the problem, but the supplied cable set.Speaker cables, cinch and remote are still in order however the current and mass cable is maximum 4-6mm2 thick and with 60A !!!! secure, that is in me in the eyes extremely negligent, I first sent a nice email if they also pay the car of my buddy when it burns due to cable fire, and demanded that the cable be exchanged for a correctly dimensioned one free of charge, if the cross-sections look like if I turn to the police and make an advertisement because of negligence?In my view, they are simply irresponsible.