I had bought an emerald key and an entei but never received them. However, I'm pretty sure it's just because I had crashed prior to purchase and then when I logged back on and waited the full time, I never actually received. I also tested this out buying two similar items and received those.
If I could have some help with this, it would be amazing. It's just simply because I crashed during and a minute after purchase. If this can't be fixed I understand.