This advice is no help.
I am having the same problem, when I called the wireless number, it took forever to get a person on the phone, when I got a person on the phone, she had NO idea how to help me. She then transfered me to DSL, and after several word prompts, I was disconnected by ATT (it was not my line).
Here are more details on the problem:
In early May my password was compromised and someone began emailing everyone on my account I have tried literally dozens of times to change my password. Unlike Gmail, everything at yahoo is more complex and difficult to do. ATT has a convoluted partnership system, where I cannot change my password with yahoo, at https://edit.yahoo.com/forgotroot/ I have to go through ATT even though I have not had an internet account with ATT for over 4 years. I CANNOT change my password. The only email which is changed through ATT is an account that I have never had: ***@attworld.com.
With Firefox 3.5 browser, on the screen to change my password, https://edit.yahoo.com/config/eval_profile?intl=us
With internet explorer, I click "Change your password" and I get this error screen: https://edit.yahoo.com/config/?.redir_from=REGISTR
Out of desperation I deleted all of my contacts, but this person from Brazil continues to email everyone on my list.
I attempted to change or view my birthday, as listed here: http://www.webdevelopersnotes.com/tips/yahoo/chang
When I posted a similar question on yahoo answers:
it was deleted:
http://answers.yahoo.com/question/index?qid=201106