That's interesting. I used MBIAuto, too. My car is also black, and my paint looks great. I just went out and looked at it again and can't find any flaws or blemishes whatsoever. I wonder if you are unlucky or if I am very lucky?
in there listing they say they will make it right if you have issues , I sent them a message about my paint code e8 comes in 2 stage and 3 stage and they said no problem we can do that so im guessing if you contact them they will send you another bumper keep us updated regards bob