Microsoft Rewards not recognizing my phone number to redeem.

The past couple of months I used the Microsoft Rewards service gave me little to no issues, but the past 2 weeks has been giving me a MAJOR issue. I use the service for my monthly redemption of Robux, and it gave me no issues until the "Phone verification" page popped up. It's asking me to receive a code.... but without a prompt to add my number. All the page asked me is that "You don't have a phone number yet." and a link to my Microsoft account info where it shows my details, including my phone number that's associated with my account. I removed and added back my phone number, added different phone numbers from other people, change my email address and its primary alias, but it still gave me the same light blue box to add a phone number. Can I get help to redeem my 16k points?