If you’re playing BingoPlus on mobile, make sure you log in through the...

https://sierra-wiki.win/index.php/BingoPlus_Login_Problems_After_Reinstall_%E2%80%93_What_Could_Cause_It%3F

If you’re playing BingoPlus on mobile, make sure you log in through the official site using HTTPS to keep your info safe. Use a strong password and enable 2FA if you can—it adds an extra layer of protection