Change information about a product

I was asking for help and you come back to me with a question. This is like trying to get an answer out of Amazon, very frustrating. But I will answer your question. I think if I put 10 years + or 10 years and upwards buyers will still get the impression that this is a book for children only. I want it to be known that this book is for children and adults. And by the way I put 95 because the book has been test read and loved up to and including a 95 year old. She said she loved the book so much she even liked the baddies. Now does anybody know how I can change this information. It is on the description of the book on Amazon kindle/e-book.