Lost my bellsouth email login once outlook activated–hotmail account still works

I can log in using my hotmail address, goes to outlook--and works.  I also had my older bellsouth.net account--could switch from my hotmail by right-click to logout or space down to go to my bellsouth.net account to get emails there.  One day it worked, next day it was gone & I have lost the ability to get to emails under my bellsouth.net account .  When I try to login, using the same login I use for my hotmail--it says to change/activate new password--which i have done numerous time--after they send me a code to install--however--cannot get to emails screen.   thanks for  any help.