So, I happen to be one of the unlucky ones as well. “Bought” two freebie items today (separately) - the first (Steam Aircraft Dragon) ended up as “processing_auth”, the second is complete. The same thing happened to me a few weeks back already, so it must be a reccuring bug. I would think DAZ must have had fixed that by now.
You should be set, I’ve been able to complete your pending order. Sorry for the issue. We are seeing this on only a handful of orders.