What’s the deal here?

About 6 weeks ago a small parcel came for me, with my name on it I opened it and inside was a Samsung phone, one of those ones that fold in half. The phone was in a leather case but otherwise loose in this padded envelope. There was no paperwork at all inside the envelope, but I did find an Evri tracking number. The tracking just said delivered (obviously) and I have raised with their customer service via web form 3 times that this parcel was not mine. No reply. It’s just sat in my cupboard gathering dust while I feel like a criminal who has accidentally stolen a phone 🤣 I’m not sure what to do with it now? Bin it? Give it to the police? Assume I have a very secret admirer who sent me a phone? (Jokes on that one obviously, my secret admirers should know I’m an Apple girl)