Hello,
For security reasons, Microsoft no longer allows users to add a phone number to a Microsoft account as an alias or for identity verification. This option was removed earlier this year.
Microsoft now recommends using an authenticator app, an email address, or a passkey to verify your identity.
Regarding the Bing rewards redemption issue, do you see this screen when trying to redeem your Microsoft Rewards points?
- Open an incognito tab on any web browser and sign in with your Microsoft account here-
- https://rewards.bing.com/
- Select the Gift card, and click Redeem now.
- If you see the above screen that says " Verify your account," - open the Bing app on your Mobile device.
- Click the camera icon on the search bar and scan the QR to verify it.
- Enter the code to successfully redeem your rewards.
(OR) If you have the Bing app installed on your device, select your profile picture in the top-right corner of the page, click Microsoft Rewards, and redeem reward points there.