I am experiencing exactly the same thing... Nothing unusual this year, special credits. E-filed on Feb 11... accepted a few days later. Message at Where's my refund went from "being processed" to "still being processed." Called IRS each (weekday) for over a week (after 21 days from "received") and have never gotten through. Always the recording "due to heavy volume, we cannot accept your call at this time. Please try again later."
I've triple checked the e-filed return, and did not find anything wrong. I had run the error check prior to e-filing and no errors were reported.
Several others filings after Feb 12 of Family members after and they have received their refunds. I'm concerned that early e-files (before Feb 12) were put in a backlog.
I've used Turbo Tax for over 10 years and never had a problem before.
