Lancôme Miracle (Sample)

The decant I received seems to have gone bad. The scent smells off, slightly sour/rancid, which is definitely not how this fragrance should smell. I’m familiar with the original, and this is very different. Also, the longevity is extremely poor compared to the bottle i had: it lasts only about 30 minutes on skin. Overall, this doesn’t seem like a fresh or properly stored decant.