Question on extra guests

I recently had a booking where they booked for 3 people, and brought 6. My place can accommodate up to six, so no biggie there. They did damage some pillows and pillowcases, but I buy in bulk, so I'm really only out $25.

I'm planning to write off the pillows/pillowcases as cost of doing business. However, should I report the party for exceeding the guests booked?

I have video evidence from the door cam for 6 adults staying overnight. Via the app, guest only admits to bringing 4 (booked for 3).

Edit: I don't charge per head or have any extra person fees.