I am not going to be much help to the OP.
I have found a number of times, when I try to create an account somewhere, it will say "email address already in use". This is perhaps because I have created an account previously. However when I try to 'forgot password' then 'enter email address' it will then say 'email not found'. What I tend to do if that happens is just creat a new account using a different email address, but I find it very annoying.