I tested this book out and the upgrade should be working as intended. Make sure that you click on the title in "your products" to expand the $4.99 offer. If that doesn't work for you, drop me a line to firstname.lastname@example.org and we can help you sort it out.
If you have any further questions or require further assistance,
You can contact us at:
1-707-827-7019 (outside the USA)
7:30 am to 5:00 PST Monday - Friday
Or email us at email@example.com
Customer Service Rep,