Amended Return Accepted Through Turbo Tax but Got IRS Letter Form Wasn't Included

I realized my son had a 1098T form with the amount we paid AFTER I filed my 2024 taxes.  My regular return was already accepted and refund issues.  I submitted the amended form with the 1098T using my Turbo Tax Online account (which is how I do the taxes) towards the end of April and it was accepted.  I just received a letter stating my request was incomplete and asking me to submit the 1098T.  How should I go about this, now?