Remember when Sonos was sending people way too many things and I recalled a time when Dell sent me two monitors instead of the one I ordered?
It turns out I could have kept it and wouldn’t have been charged… because of the law:
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 have 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. You may keep such merchandise as a free gift.What To Do If You’re Billed for Things You Never Got, or You Get Unordered Products | Consumer Advice
I don’t think this was the law when this happened to me, but this is good to know! Generally, I think I’ll still just send extra stuff back but I know there are many folks who wouldn’t mind reselling items.