Paint will not stick to emblem....

Hey there. I have a 66 barracuda and I recently had the rear lower glass trim "restored" by some clown in Minnesota. He charged me an arm and a leg and then sent it to me all chrome with no black paint (although I requested it) in any of the recesses and none around the ring that circles the fish. I sanded and painted these areas and now it just flakes off. Is there a special kind of paint I should be using? The paint does not like sticking to the chrome at all. Any help would be appreciated. Also, never send anything to Iverson Automotive in Minnetonka, MN. Guy is a rip off and a thief.