[mothered]

I told my sister I was expecting a package and to not sign for it as I needed to. I don’t think they understood and they ended up signing for the package before I could get to it. We don’t have the same last name but I don’t think it matters anymore.

We don’t have the same last name.

^ It doesn't matter - the delivery was still signed by an authorized household member.

checked the proof of delivery and it says signed for by someone completely random that I don’t know.

So you're going by the actual name, correct?