I have messed up my user name. How do I delete it. I opened a new account but NEED the old one back for busins

I've had my old account since 1999. Business, calander and personal info. New account accepted password but says the user name is still registered. I need my old account back. Please help!
I have messed up my user name. How do I delete it. I opened a new account but NEED the old one back for busins
If its a yahoo account that you wish to close, and by closing you mean deleting the account, so that you would not have access to it again, then use this link to delete the account :





https://edit.yahoo.com/config/delete_use...








See complete datails about deleting your account here:





http://help.yahoo.com/help/us/edit/edit-...








Also, if you do not wish to do it now, but would rather have it done on its own, then just stop using the account, it would be deactivated in some time.
Reply:go to yahoo help.