So, I first contacted the creator through Backerkit help, and they said to contact Quartermaster Logistics. I contacted, QML, and they said to double check the package. I double-checked every inch of it, including under the flaps. They then said they'd contact the creator to see what can be done. The creator wanted me to check again. How many times do I need to confirm that the item is not there for it to be accepted? Anyway, I gave up. It's just a metal d20 and isn't worth so much headache. On principle, I will not be backing Tempest. I encourage future backers to not get their hopes up for any bonus items. It seems like they won't believe you if something is missing.