VIB Rouge paying off??

I received one of my Sephora spring sale packages yesterday, and upon opening I discovered the following:

...lo and behold, it had three full size NARS Smudgeproof eye primers inside! I only paid for one, my invoice only had one listed, and I checked my statement, and was indeed only charged for one. Happy accident, or the VIB Rouge gods smiling upon me? Thanks Sephora, for the $50 in free product - I'll take it!