After you file

only the IRS can provide information about your federal refund.   you can try calling but you'll probably have trouble getting through. millions of returns with refunds have taken much longer than 21 days which was just a Turbotax estimate. in fact, some taxpayer are still waiting after more than 90 days

800-829-1040
First choose your language.
Then 2
Then 1
Then 3
Then 2
When asked for SSN do nothing it will ask twice
Then 2
Then 4