I'm seeing this as well - and ironically, I live within walking distance of an Amazon fulfillment center.

The scummiest part, though, is that when packages get completely lost, half the time I can't request an automatic refund, I have to work with a customer support rep to get it issued.

Realistically, it should be completely automated. If Amazon knows my package was lost (in my most recent case, it never even shipped!) not issuing the refund automatically is anti-consumer greed.