Two factor auth

Hey i have been unable to play for a while do to health i am disabled. But am back home for now and cant leave. Tried to log in and it says two factor authentication needed please check yoru spam this a new problem? i have never seen this now have i gotten any msg in my spam but i didnt get the email to check if this was me loging in sense i been gone i assume.....still cannot log in after that still says need 2 factor auth and i did the downgrade thing to see if that fixed it and it did not. If could get some help i would appreciate it.