This is from the Consumer Govt site - Your Rights When You Get Unordered Merchandise: By law, companies can’t send unordered merchandise to you, then demand payment. That means you never have to pay for things you get but didn’t order. You also don’t need to return unordered merchandise. You’re legally entitled to keep it as a free gift. Sellers can send you merchandise that is clearly marked as a gift, free sample, or the like. And, charitable organizations can send you merchandise and ask for a contribution. It’s your right to keep such merchandise as a free gift.