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It is looking for a Microsoft account. That may be in the bellsouth name but it won't be the same password ***** you use to get your bellsouth emails
Try going to www.live.com and put in the***@******.*** as the user I'd and then hit the lost password ***** and see what comes up as an option to recover it.
Let me know what it says if you can't get it changed that way
Have you got another Microsoft email address like something at live.com or @hotmail.com or outlook.com