Please explain exactly what you have done so far. Did you e-file your tax return? Was it accepted by the IRS? If it was accepted you cannot change the banking information. If it was rejected, you can change the banking information but do NOT click on anything that says "amend." You do not click on "amend" to fix mistakes on a return that has not been filed or fully processed.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**