If you’ve been waiting until the last-minute to shop the best Prime Day deals, you’ve just about run out the clock. Today marks the end of Prime Day, which, this year, was four days long. And we can’t blame you if the sheer volume of sale has made your head spin, and the extended time window has you wondering if the deals are changing each day.

If your Prime Day purchase doesn't meet your standards, here's how to get a refund and return the item for free.