Missing navigation – Blue Shield of California Review

Upon opening the app for the first time, I was asked to either create account or sign in. I thought I had an account so proceeded to choose sign in. After the login failed I attempted to go back to create an account - which proved very difficult as there were no breadcrumbs for me to go back or options in the hamburger menu. Closing the app didn't work either.
Review by zplus1 on Blue Shield of California.