The flip side of this is Amazon actually refuses to inquire with delivery companies, and here in Canada, the post requires that the sender be the one to inquire

The flip side of this is Amazon actually refuses to inquire with delivery companies, and here in Canada, the post requires that the sender be the one to inquire. I've had several instances where the item was clearly at my local post office but misplaced. Canada Post refused to check without Amazon requesting it, and Amazon refused to do anything but send a new item. In each case the original item mysteriously appeared in my box months later when the postal workers inadvertently found it.