Here is some information put out by IRS:
The IRS has indicated they’re using the latest taxpayer information they have on file to issue the third stimulus payment. That means they are sending your stimulus payment to one of the following:
If you didn’t update your information with the IRS, they will issue your payment using the latest information they have in your file, not the information you provided to the TurboTax portal.
In addition, here are a couple of links that you can go to to get information on your refund and the third stimulus check:
Third stimulus check information link:
Tax return refund: