I bought a book and I would like to upgrade my purchase to buy the whole bundle the book is in. Can I do that?

We don't have a way to upgrade purchases, sorry. What we recommend in this case is that you get a full refund for your original purchase, and then buy the bundle.

We make it easy to get a refund - here are the instructions:

http://help.leanpub.com/reader-help/how-do-i-get-a-refund