If the program isn’t accepting the EIN you’re entering, make all possible attempts to get a valid EIN, as terry-n is suggesting.
But, at the end of the day, if it’s not accepting the EIN, you’ll need to file your return on paper. The IRS requires a valid EIN or SSN; without one, your return won’t be accepted in e-file. With a paper-filed return, an actual person will be able to research and match up the EIN.
Please see the TurboTax Help articles How do I print and mail my return in TurboTax Online? or How do I print and mail a return in the TurboTax for Windows CD/Download software? as appropriate for the instructions on filing your return by mail.
