Authenticator App Android

So I install the MS authenticator app on my phone and am immediately trapped in a mobius loop with identity verification. Starting the app it immediately wants me to select and account. I select my MS sign-in account and the appgoes to verify identity screen.

There are four options

1. Approve a request on my authenticator app” [which I am already running by the way!]
2. Verification code from my mobile app [surely that’s the same as option 1?]
3. Text
4. Email [and it shows the wrong email]

Re the wrong email i go to my pc and double check my MS account. all is good. So where has this wrong email come from? Anyway I get nowhere with option one or two since the app is already running and isn’t providing me with a code.

I try Text and get a test message with a code but the app refuses to accept this code as it is one character too long.

Back on my PC I want to change my device privacy and history in Settings. I have to enter my password again then up come the same screen as on my mobile app asking to verify my identity with similar options to the app. so now I have the mobile app asking me to do the same as the desktop app.

I’m going round in circles.

Could Microsoft make this any more difficult?