The IRS is currently not taking phone calls so there is no way to call them.
In normal times, the IRS says that most filers get their refunds within 21 days from the time their tax return is accepted.
Many returns are taking longer now since the IRS did not process returns for a while and there is now a big backlog of unprocessed returns.
The IRS is currently not processing any mailed returns.
If you efiled your return, have you confirmed that the return was submitted by TurboTax and accepted by the IRS?
If accepted, what does the IRS tracking web site say about the status of your refund?
Here is an IRS Q&A with information about refunds:
Waiting is frustrating—refunds are taking longer in many cases. These are not normal times. It is not possible for TurboTax to speed up the IRS for you. It seems to be taking longer than usual for them to process returns. They are short staffed; and they are processing millions of tax returns at the same time that they have been burdened with the task of processing millions of stimulus checks. The IRS is not taking calls right now.
TurboTax gives you an estimated date for receiving your refund based on a 21 day average from your date of acceptance, but it can take longer.
Once your federal return has been accepted by the IRS, only the IRS has any control. TurboTax does not receive any updates from the IRS. Your ONLY source of information about your refund now is the IRS.
You need your filing status, your Social Security number and the exact amount (line 20 of your Form 1040) of your federal refund to track your Federal refund:
To track your state refund:
On the IRS site you are also offered the use of an app called IRS2Go
If you chose to have your TurboTax fees deducted from your federal refund, that will take some extra time, while the third party bank handles the refund processing.