If you efiled, does this tool confirm that your return was accepted?
https://shop.turbotax.intuit.com/efile/efile_status_lookup.jsp
If so, then what do you see at the IRS website below for the status of your Federal refund?
https://www.irs.gov/Refunds
If that IRS tool shows that the refund has been sent, but you didn't receive it, report back for more info.
If the IRS tool says it is still "being processed", and if it's been longer than 21 days, we can tell you how to speak to a live agent at the IRS to see if they can tell you anything about the delay.
To track a state refund:
https://ttlc.intuit.com/questions/1899433-how-do-i-track-my-state-refund
