the IRS website says it officially opened e-filing of 2021 individual returns on 1/24/2022.
https://www.irs.gov/newsroom/2022-tax-filing-season-begins-jan-24-irs-outlines-refund-timing-and-wha...
so filing early means it sat on Turbotax's server until e-filing officially opened but the IRS must have accepted your return because state acceptance (you got your state refund) is dependent on federal acceptance. you did get e-mails notifying you of acceptance from both federal and state didn't you?
assuming you got a notice of non-filing from the IRS use this website
https://support.turbotax.intuit.com/irs-notice/audit-support/
otherwise
if you called the IRS and an agent could not find your return there's no telling why. the IRS is behind in processing returns but since yours was filed so early there should be info available about it to the agent. I would contact Turbotax support in this case
5am-5pm Pacific Time (8-8 Eastern) Monday - Friday
https://support.turbotax.intuit.com/contact
800-446-8848
