Can't log in on tablet

How can I retrieve my sign on name and password to sign in on another device. I inadvertently set up a second account on that device, and it keeps reverting back to that account which I don't want to use. I want to delete that account and sign in under my current name so that I can play from that device also. I was successfully using that device until it no longer would go to the proper account.

@Selig

Log out of your 2nd device, then log in with your email and password (not social media details.)

Then send site feedback with your second account name, and I will close that account for you.