@Kate2393 As the man giving directions once said 'If you are going there I wouldn't start from here'.
Sadly your actions have already almost guaranteed a bad review. Yes you do deserve to be able to charge for carpet cleaning but I am afraid the system makes claiming for every thing that happens a bad idea.
Now to your not leaving a 'bad' review. This is a really bad idea for 2 reasons.
1) The guest won't see your review until he leaves his so it won't influence a bad review
2) Anyone worried about his review of you will click on his account to hear your side of the story. Not leaving a review will make them conclude his review is accurate and possibly not book with you.
Sorry you got in this mess so early in your hosting career.