If support can not help, that means the information must be changed on your EFIN and you need to contact IRS https://www.irs.gov/tax-professionals/how-to-maintain-monitor-and-protect-your-efin

When done you will need to submit EFIN to intuit AGAIN. https://proconnect.intuit.com/support/en-us/help-article/account-management/register-efin-proconnect...

EDIT - I stand corrected by Phoebe, who knows way more than me. Ignore my post above.

I assumed you clicked the Settings "gear" in the lower left and made the change there Preparer Information