I netfiled my return for a previous tax year and need to amend it so I can re-file it to CRA, however I had previously uninstalled the software for that tax year. I've re-installed the software and have tried to amend the return through the software but I am receiving an error telling me the return cannot be amended as it has never been netfiled. I have the Netfile confirmation code from CRA for that tax year, is there a way I can enter the code into TurboTax so it will allow me to amend the return?