Caller: Charity

I returned the call and got a automated message that this was “Clever contacts” - an agent who does telemarketing for various charities.

Unknown number - phone identified it as suspected spam. I didn't answer and no message was left. Blocked.

Got a call to mobile, but have set number as 'Blocked' so call diverted to voicemail. No message left by caller. Sounds like charity mugging was likely intended call