Form submissions are called "Entries" in the Form plugin that we use on your sites.
How to get to the entries list?
After you log into your website, on the Admin Dashboard menu on the left, please hover your mouse over "Forms" and then click on "Entries" as shown in the screenshot below.
On the entries page, near the top, there will be a drop-down menu telling you which form's entries are being displayed. To display entries of another form, choose another one from that menu.
How to view all responses in an entry/submission?
To view the details of an entry, hover your mouse over the entry you are interested in. When you do so, a few options will appear underneath. Click on "View."
On the next screen you will see all the responses in the entry. You will also see some notes at the bottom that tell you what the status of sent notifications is. On the right, in the image below, the place where you can re-send notifications is also highlighted.