Please test it out next time before you buy. If the seller is not honest and LCLY, no point buying from him. Not only he's the one in the world selling the stuff. If you dunno how test it out, ask someone who knows along and belanja him minum.
Never pay for anything you are not sure of. You put yourself at risk of losing the money this way. As other members have no problem, because those are WYSIWYG. Electronics and engine parts are diff. You need to test them out first or else this kind of case will happen, especially with large sums of money.
As there is a chinese proverb, "GOOD THINGS DUN COME CHEAP, CHEAP THINGS DUN COME GOOD".