Are you sure your returns were submitted and accepted?
Did you get the "Your returns have been accepted" text or email? If not, then I would double check to see if they were filed and accepted. If so, did you check with the Treasury Offset Program ?
If your refund is in limbo only the IRS can answer why. You can reach them at 800-829-1040.
Yes, you are correct, if you are due a refund and it has been a while, the IRS does include interest on that refund.
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