If you are concerned about the status of your taxes and you are past the 21 day mark you should call the IRS to see if they can provide you with any additional information.
https://ttlc.intuit.com/replies/4495802
I have not received mine, my status on the IRS website says they are processing my return. I called a few times and I was unable to talk to a person the automated system tells me it's processing. I haven't received any mail either. I'm stressed and I would really like to know what the deal is. Turbotax sorry but ya'll aren't exactly helpful either.
If you claimed the EIC (Earned Income Credit) or ACTC (Additional Child Tax Credit), you will most likely see the message, "We have received your tax return and it is being processed" for several days after February 15th.
Where's My Refund? will be updated with projected deposit dates for most early EITC/ACTC refund filers by February 22.
The IRS expects the first of these refunds to be available in taxpayer bank accounts or on debit cards by the first week of March.
Refer to the following link for additional information: Refund Timing for Earned Income Tax Credit and Additional Child Tax Credit Filers