For me, it was about five in a month where price drops occurred for items bought and sold by Amazon LLC within a return period. They refused to honor the reduction calling it a price match every time. They told me to return the item(s) at cost to myself and re-order it at the new price every time. That's just ridiculous.
That is ridiculous and one of the few head scratchers in Amazon's policies. I understand not price matching competitors during a return window but what about your own store? I had one instance when a price lowered while the item is in transit. They've suggested that I refuse the order and just return the unopened box which is fine but a bit weird -- even to the postal office.
For other instances, I just select a reason that will give me a free return label and just buy it again.