I screwed up. I admit it.  I should have gone to sleep hours ago but I was browsing through some sales and vendor pages adding products to wishlists and closing tabs.  Normally the Add to Wishlist button is above the Like/Unlike button.  But if you've bought the product the wishlist button isn't there and the Like/Unlike button slides up and TAKES IT'S PLACE!  I may have smacked the button a few times before I saw why it wasn't telling me it added it to my wishlist.  (Interface buttons *really* should not move around)

Now the page says "Unlike" -- does that mean it's tagged that I liked it?  Or is it tagged Unliked? There doesn't seem to be an "Undo" button.  I haven't actually used the product yet even though I bought it years ago.  If my "oopsy" can't be undone I'd prefer that it be liked and not unliked.

The Contact page seems to be more about product and sales support rather than website support.  Should I just forget about it and go to sleep?

The "unlike" indicates you've liked it and is giving you a chance to remove the like.

Thank you, RedPhantom.  But does that mean "Unlike" is not a downvote?  In other words there's no negative mark in this system. Just positive "Like" or nothing "Unlike"?  Obviously, I'm old and not completely hip to this social media world. :-)

If you like something, it will get a thumbs up and the unlike button will show up.

Then when you hit the Unlike button the opposite will happen. The thumbs-down total will drop and you get a like button again

You do have to refresh the page to see the change in votes.

Think of the unlike as an undo button