Did you mail in your return and fail to send those forms ? The IT-196 is the FED Sch A equivalent and the IT-558 supports the NY adjustments from the FED return.
Save a PDF of your return again and look for those forms ... if they are there print them and send as directed in the notice.
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 Monday-Friday
