WoD Account Creation/Upgrade Strategy

[MiRai]

I just tried that, have an old starter account. But when I hit the upgrade button it sent me to the same Blizz page for the $20 boxed set.

This needs to be done through the game client, you need to have already created a character on your trial account, and when you log into the game client the server with the existing character must be loaded into. At that point you'll see a big pop-up box telling you to upgrade for 50% off, and following that link will take you to a BNet sign-in page where you'll then be directed to a store link for a $10 Battlechest.

To make sure this was still working, I tried it again before replying. Sorry it took so long for me to test it since it seems like you've already paid the full $20.

EDIT: Proof