Review on ACDelco 177 0972 Original Equipment Front by Jason Ampongan

I ordered two of these discs specifically to the specification which says 'Made of steamed iron or G-3000' and 'Fully painted for maximum corrosion resistance'. I think one of the rotors I got might be correct, but the other looks like an ACDelco 18A712A which was a cheaper part that I purposely didn't want. How can I solve this problem? See photos of the two different rotors I received. The one on the left looks more like the photo advertised on your site, while the one on the right looks very different. Please provide a solution.