Unfortunately I'm another person who backed the project by getting the Digital Fun-Pack with the Strategy Guide- and Expansion-Addon.
It's kinda sad that we get the Champion Edition because it could have been so easy if they would have offered a package in their kickstarter campaign that included the strategy guide without the extra copy of the game that most people don't needed. It just doesn't feel right that we have to get our stuff from two different websites when the content of the royal edition is including everything we paid for.
I hope they try to find a solution for that. Please offer help trough customer service if it's not possible to code a script that checks if someone has the digital fun-pack with the strategy-guide addon.