Did not leave message. Will wait and see.

Spam and the caller didn't leave a message

Same as JJ. Did not leave a message but they have called me twice now.

National State Emergency Service Fundraising.

Caller: Ticket seller

Said they were selling raffle tickets for Nationsl SES.
If I wanted to buy them I had to give name and address so they could post them to me. Didn't ask for money, you pay later.
Asked my date of birth (to check I am.over 18, because it's a lottery)
I tried ringing the number and it was an answering machine message, confirming that it was a fundraising company.
Sounded realistic.

Someone who knew my name