Just purchased an Xbox one thought amazon. The redemption code to choose your bundle expired ...

For help with that offer, you'll need to fill out the form on the bottom of the offer's FAQ - https://microsoft.promo.eprize.com/nameyourgame/faq.html If the code has expired, it may
no longer be possible to take part in that offer.

Give Amazon a shot, I think it'll work for you. If not, you'll just have to sit on it for a while. Make sure to choose the digital option so you get your redemption code instantly.

I just purchased an Xbox one s with a bundle package that had a 1 month free trial of Xbox game pass and mine is giving the same error message. It tells me that the code has expired and cannot be redeemed. My expiration date is also 6/30/19.

You shouldn't have to buy them again. I also had a Black Flag bundle with redemption codes, but I just checked my console and the games are still showing up fine. I would recommend rebooting the console completely (not just stand-by). If that doesn't work,
then check the uninstalled games list and see if it needs to be reinstalled or in the list of hidden games.

If that still doesn't work, then I would call the Microsoft support line and request assistance in getting the title properly marked as owned on your account. I had this happen to me before with Marble Blast Ultra for Xbox 360 and they ended up providing
an additional redemption code for me re-purchase the game because the original code had expired and I wasn't able to use it anymore.

Not sure what or why that happens, but it appears to have to deal with redemption codes instead of legitimate purchases because it has never happened on any of my other purchases from the store.

When a game is included in an Xbox One bundle, it is either in the form of a game disc or (more frequently nowadays) a redemption code. That code is redeemed to your account, which means you can reinstall it at any time. In order to get the game, you need
to be sure you're signed in with the account to which the redemption code was redeemed. If the game was on a disc, just reinsert the game disc and install it again.