PilibO
School Idol
Amazon themselves have no way to tell what discs are inside other than opening the product, which they won't do.
You could try for a refund, and get them to let you keep the product, but its your choice how you deal with CS. They might tell you to return the product
I was very polite last time and explained that the cost of tracked shipping to the U.S. would be expensive, so they offered a replacement without a return (very good of them). I don't want to push my luck, but at the same time if they promised corrected discs it's worth a try?