Send $current_user data on hidden text areas

I have a feedback form in my website and I don’t want to make the client fill the name and the email “input type text” I just want to fill it under the $current_user variable of WordPress automatically.

The problem is I’m adding this form in PHP under -> echo do_shortcode(‘[contact-form-7 id=”16401″]’); so I’m not able to edit the inputs.

The feedback form is just a text area input and a submit button.

What can I do ? Should I create a normal form and send it using the php mailer or smtp ?

If there is any doubt please ask.

Here a screenshot : feedback form

Thanks !

https://wordpress.org/plugins/contact-form-7/