Ordered a gift on 24 November. It's now 28 December. The package was last tracked on 16 Dec. No traceable movement since. Customer service says they don't do anything until the item has been delayed for ten days. Time's up guys! Another life lesson and first and last time I use Zulily.
January 2017 update: customer service agreed that the package was definitely lost in transit. I was given a 10% discount off next purchase and a full refund was made.