I received my email to "claim your free Infernium Dwarven Spiderling pet!" I copied the code from the email and placed it in the redeem reward code box in the crown store as instructed. It replied with an error that the code has already been used, and therefore was invalid. I checked my collections and confirmed that I do not have the Infernium Dwarven Spiderling Pet in my non-combat pets. Anyone else having problems redeeming the free pet code?
@MoonlightShadow sent you a DM to ask for more information.
For everyone else, please keep in mind codes are still being sent out if you haven't received yours yet.