Anyone else received random enfamil packages?

I don’t remember signing up for anything with enfamil but I’m getting emails from them now & yesterday we received a sample package from enfamil with gift cards & coupons for enfamil & of course formula. It was completely sealed up with plastic wrap & everything looks good. Came with a few coupons I see everywhere and a little booklet of coupons for enfamil. Nothing is open but still concerned because I didn’t order anything from them. Anyone else receive a box like this from them? Please let me know, I am a first time momma & I know there are scams out there so I don’t want to potential use anything that can harm my baby for momma being naive or something.