As others have reported, I too appear to have two copies of "Bigger Caverns" in this order. Please make sure the non-sub one gets cancelled. :-)
Hello Ed,
I have removed the extra mat from your order. I also noticed an item had been pulled out of your sidecart that was not ready to go and would cause the order to wait. I have moved that item back into your sidecart. You will be receiving an updated email confirmation reflecting those changes.
Thanks, Diego