If you’re playing BingoPlus on your phone, make sure to log in only 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 your phone, make sure to log in only through the official site with HTTPS, use a strong password, and enable 2FA when you can. It’s also a good idea to keep your app updated—check bingoplus