OP - I wouldn't worry yet. The same thing happened to me. When I filed with TurboTax, they said refund would be Feb 26. I went to Where's my refund? and IRS said March 2 (I think they allow 3 business days for deposit to go into your account.) Anyway, March 2nd came - no refund. So I went back on the irs site and it was changed to March 9. Like you, I began to worry. But, on Friday, March 5, our refund was in our account. So, I would at least wait until the 16th to do anything.