Hi there. I understand how frustrating this must be. Since your address is new, Bing’s system may not recognize it yet.
The best step is to confirm your location appears correctly on Bing Maps by using the “Report a problem” option to submit the new address. Once it’s added, try the mail verification again. Have you already submitted the address update on Bing Maps?
If not, that’s the first step before Bing Places can verify your business.