A program that grants points for using Bing search, which users can redeem for gift cards, sweepstakes entries, or charitable donations.
Hi,
If you accidentally redeemed a Microsoft Rewards gift card in the wrong currency, the best option is to contact Microsoft Rewards Support as soon as possible and explain what happened.
Once a reward has been redeemed, it may not be possible to reverse the points transaction or exchange the reward for a different currency. However, Rewards Support can check your redemption and let you know if anything can be done.
You can contact them here: https://rewards.bing.com/support
For future redemptions, make sure your Microsoft Rewards region and the currency of the reward are correct before confirming the redemption.