That's extremely hard to believe, just because it's such an unusual complaint. You generally get something in the mail, even if it's a Chinese counterfeit. There must be a logical explanation -- what do you think is contributing to the problem?

Not an original author, but had it several times as well. Example one - tracking number was plain fake. Amazon refunded after I've contacted them through A-Z guarantee. Example two - tracking number was ok, but order was delivered to Florida, instead of California, with no comment from seller. Amazon refunded through A-Z guarantee.