Answered the call and the cockhead hung up.
Number blocked.
Easy peasy.

Caller: Charity fund-raising specialists

Called back just to see who was calling, answering msg was fund-raising charity.

Beware of this unlisted number as it is almost certainly yet another spoofed number being used by cyber criminals. As this number was not recognised it was left to ring out with no message being recorded on completion. Accordingly, the above number has been blocked and reported.

No message

Caller: Apple Marketing Group

I called back and it went to voicemail for Apple Marketing Group who do telemarketing for charities.

No message left

Keeps calling but hangs up and doesn't leaves a message. Suspect scam