Turbo Tax does not send refunds. It comes from the IRS. They are backlogged and the IRS Refund Lookup is delayed and doesn't work right. If you efiled and Turbo Tax says it was Accepted you just have to keep waiting.
You can double check your efile status here
https://turbotax.intuit.com/tax-tools/efile-status-lookup/
When you efile you get back 2 emails. The first email only confirms the transmission. The second email says if the IRS (or state) Accepted or Rejected your efile.
When you log into your account you should also see the status and if it was Accepted or Rejected, Started, Printed, Ready to Mail, etc. What does it say?
