Or did you already start a 2018 TurboTax return online prior to the 2018 online shutdown, and want to finish that one without starting over? If so, you can download the *.tax2018 data file from your account and finish it in the desktop software. If you already paid for your 2018 product previously, TurboTax Support should furnish you the software.
Hours are 5AM-9PM Pacific (8AM-12 Midnight Eastern), 7 days/week
FAQ: What is the TurboTax phone number?
https://ttlc.intuit.com/community/using-turbotax/help/what-is-the-turbotax-phone-number/00/25632
