For this:
Register on QForm and add your website
Switch to the design mode, add and configure the field types:
In the design mode, place the Name and E-mail fields. Make them mandatory.
Drag the Text (paragraph) field to enter comments
Go to the Embed Code tab
Copy the DIV for installation and the script of the feedback form with the attachment of the file for the call, paste it on the site
After installing the code, a created feedback form will appear on the site