An IRS-issued check will be mailed to taxpayers that received a check printed from their tax professional's office or a debit card issued through Santa Barbara TPG. The IRS portal says it is for non-filers only. if you have filed your taxes I don't know if it will let you change your information. You can try it and see what happens.
https://www.irs.gov/coronavirus/non-filers-enter-payment-info-here
same thing applies to the turbotax portal
https://turbotax.intuit.com/stimulus-check/
