If the 2018 return was prepared online, and if you want to know how to find and download a copy, we can tell you in this forum how to do so.
For help by phone TurboTax Support hours are 5AM-5PM Pacific, Mon-Fri this time of year.
FAQ: What is the TurboTax phone number?
https://ttlc.intuit.com/community/using-turbotax/help/what-is-the-turbotax-phone-number/00/25632
