(Machine translate)How do I get my website to support Edge's Immersive Reading features?

hi hope you are doing well, actually i lost my mobile containing the MS Authenticator app for my MS 365 account. Unfortunately I haven't set any other method for two step verification. Now I have access to change the password, but I can't sign in to it as it asks for the authentication code or permission from the app. Kindly help me to recover my account. And also give me the method to contact to a live agent for assistance. Thanks!