A program that grants points for using Bing search, which users can redeem for gift cards, sweepstakes entries, or charitable donations.
I have the same issue. The absolutely worthless link for Rewards Support (bing.com) does literally nothing. Honestly not even sure why it's a thing. Daily emails for two weeks and I've gotten 0 replies.
I've tried contacting Microsoft Support but it's just a bunch of illiterate GPT users who claim that Microsoft Rewards "responds within 24 hours" (they do not) and that "they totally can't talk to that department at all".