Hello, thank you for all your replies.
I have indeed now reported this to 101.
The policeman who took the call couldn’t have been more helpful. And said he was delighted

I had called as it’s reporting even minor things like this that can help with their intelligence and resources.
When he heard the address, he said we aren’t exactly in a ‘crime hotspot’ but this sort of issue is definitely on the rise sadly.
And from past experiences they are after ID. Even the smallest thing with a name and address can be useful to criminals.
Thank you again. Lou