stolen info??

I haven't signed up for any type of websites or anything for the baby except I gave my email at the motherhood maternity store. Now I'm bombarded with a bunch of useless crap all the time! Got a box from enfamil with free formula but I'm ebf, got free pacifiers from idk where but I'm picky and only use a certain brand. Got tons of "gift cards" and coupons but they seem like a scam and I'm wondering have any of you ladies gotten the same? Did the store like sell my info or something? Idk how I'm getting things delivered or how they know my address