I too have discovered that the Amazon Gift card option is "currently unavailable" and the answer that was given to another person on this subject isn't acceptable.
For one thing, I've never experienced the "Often temporarily out of stock" issue. I've been doing the Microsoft/Bing points for an Amazon Gift card for as long as it's been available and I've never have had an experience of it "being unavailable."
I feel that the real reason is that Bing is slowly phasing this option, Amazon Gift Card, out completely. The points offered for each search has also been lowered over time. Sometimes a person only gets a couple points per search.
I'd think that if an Amazon Gift was unavailable because of high demand, it would be the same for other platforms that offer this as a gift for points earned and all those other platforms, at the time of writing this, are available.
reply from a mod:
The Amazon Gift Card has not been permanently removed from Microsoft Rewards; rather, it is often temporarily out of stock due to high demand. Microsoft releases a limited number of gift cards each day or week, and once that allocation is redeemed by users, the reward either disappears or shows as unavailable. This is particularly common with high-value and popular rewards like Amazon gift cards. Additionally, availability can vary by region, account eligibility, or recent redemption activity. If you've redeemed one recently, there might be a short cooldown period before you're eligible to redeem another.
To improve your chances of seeing and claiming the Amazon Gift Card reward, it's recommended to check the Rewards page early in the day, typically between 7 AM and 10 AM, as that's when the catalog may refresh. It can also be helpful to try clearing your browser cache or checking from a different browser or device. While Microsoft doesn’t currently offer notifications for specific reward restocks, checking daily while logged in is the best way to catch it when it's available.
Changing your region or language settings may show different availability, but this should only be done if you're actually located in that region, as violating location policies can lead to account issues. Lastly, avoid using third-party tools or extensions that claim to track availability automatically, as these may breach Microsoft’s terms and could risk your Rewards account.
If you've been checking regularly for several weeks and still can't find the gift card, it's a good idea to contact Bing support directly to verify availability for your region and account here:
https://rewards.bing.com/support