She said she is from policing.

Very pushy way of soliciting

Missed a call from this number. Tried calling back but said it was an outbound number only and could not receive calls. Dodgy

Soliciting donations using the Police Force as their background.
I told them that my mobile was on the 'Do Not Call' Register and that I will report them.
That just got them annoyed yet they didn't check the register before annoying me!

This is constantly calling our work phones, really pushy trying to sell various Police Advertising when I asked Police Force Staff they said they are a scam. Block this number instantly

Had this number ringing my mobile. When you ring it back it says this is an outdial number only and cannot receive calls. These service providers providing this harassment to hide the blocked numbers no longer answered should be fined by ACC. Time to start reporting them due to the lost time, interrupted business, client calls etc etc.

had a missed call so tried calling back, but instead of answering it, they hang up... Interesting...?