We were supposed to receive a free wood display case/chest after we paid for 6 minerals. We paid the expensive prices for the minerals thinking the case would make up for it. We've been waiting for the case for 6 months now. When I call they keep telling me it's back ordered. They have also stopped sending minerals out. My son is very upset since this was his Christmas gift from us. I would not trust Del Prado with any further dealings.