If I amended my tax return on the 3rd of February and haven't been given the updated tax form to mail in, what do I do? I was told I would be notified when it was there.

I filed my taxes on the 3rd of February, and both were accepted that morning. Later that day I used TurboTax Online to amend to those returns because I messed something up. I submitted them through TurboTax and was told I would receive an email when the new tax form with my changes was ready to be printed off so I could mail it to the IRS. I have received my refunds already, but haven't gotten any notification of my amendments. What should I do?