Our neighbour has kept someone's double bin after it was left at the wrong house - can they do this?

I live on a road where one of the houses has a big double bin, and the binmen recently left it at the wrong house. The owner of the property the bin was left at just kept it.

Our neighbour has kept someone's double bin after it was left at the wrong house - can they do this?
I live on a road where one of the houses has a big double bin, and the binmen recently left it at the wrong house. The owner of the property the bin was left at just kept it.