You can easily change the recipient email of a form.
In edit mode of the website builder, go to the page with the email that you need to change.
Locate the content block with the form and click the "Form Builder" button on the tool bar.
Click "Edit" and then down at the bottom. and click the 3 dots. Click "Form Properties". Change the email and click "Apply Changes".
Go back and check to make sure it saved.