Comment by jonners00

If I forget to pause my VPN before going to Amazon's website, I can't log in with just username and password, I get a page telling me they've sent a code to WhatsApp (which I don't have) with a button to click if I want an SMS instead. Clicking that button never works (error message that I've 'requested too many OTPs') but opening the Amazon app on my phone shows a modal saying 'someone who knows your password is trying to log in... etc' and asking me to approve. They're definitely trying to use WhatsApp by default for sending verification codes.