Do you mean the IRS Rejected your 1040 return? The W9 is the form you give the company that pays you to give them your ssn so they can give you a 1099Misc at the end of the year (instead of a W2).
When you filed your return did you say you were a dependent? You need to check the box that says you can be claimed on someone else's return. It is too late to fix it and efile it again. Now you need to print and mail it to the IRS.
