HELP! How do you tell Amazon there are pages missing in a Kindle edition?

8:34 pm 23 December 2015
The Beauty #2 - Jeremy Haun, Jason Hurley, Jeremy Haun

Do I return it and put why in comments or is there some specific way to report it? I was really enjoying this but it was only £0.66 so I'm not bothered about a refund. Three pages missing though.

 

Thank in advance.