A program that grants points for using Bing search, which users can redeem for gift cards, sweepstakes entries, or charitable donations.
Microsoft have never indicated they will allow VPN's to be used for Bing rewards, they do not allow that to ensure there is no cheating and because Bing Rewards is geo-location specific.
If you have been banned on Bing Rewards, this forum is just a user to user forum, no-one here has any account access, the only option they provide is to fill out the form on the link below to have the suspension on your Rewards account assessed and removed.