I filed my 2017 taxes with Turbo tax and the IRS has no record of them being submitted

Something must have gone wrong with your e-file.  Either you did not actually go all the way through to the orange button that said "Transmit Return Now" and complete the process, or your tax return was rejected and you did not notice or follow up.  At this point, you have to print, sign and mail it 

 Online preparation and e-filing for 2017 is permanently closed.  You have to download 2017 software to a full PC or Mac (not to a mobile device) and then print, sign and mail your return.  If you already paid for your TurboTax software, you can contact customer support to push a download of the software to you.

To call TurboTax customer support

https://ttlc.intuit.com/questions/1899263-what-is-the-turbotax-phone-number

They are available from 5 a.m. to 5 p.m. Pacific time.

To finish a prior year return started in TT online:https://ttlc.intuit.com/questions/2559403-how-do-i-finish-a-prior-year-return-that-i-started-in-turb

When you mail a tax return, you need to attach any documents showing tax withheld, such as your W-2’s or any 1099’s.  Use a mailing service that will track it, such as UPS or certified mail so you will know the IRS and/or your state received the return.