Didn’t leave a message
I reckon it’s a scam company’s person calling to say you advertised in their possibly fake - on line magazine
Avoid !

Caller: Scam

Same story here, Said I agreed to advertise in their magazine but had no proof of the conversation nor had I talked to them before. These people are so persistent, I had about 6 calls from them in one day from several different numbers. All have middle aged Australian sounding women on the other end and get quite rude when you say no.
Avoid!

Caller: Scammer/ thief

They find books where u have advertised legit and pretend that u have advertised with them 3 months ago , absolute scam , the ligit companies would have a booking order etc ,, they absoloute scammer fro Queensland

Caller: National Safety Journal

Lady called and stated that my ad was printed and "as we spoke about in November" your free copy is on the way. Then asked me to confirm the spelling of my last name and other details. Scrolled back through my emails and this confirmed my suspicions. Rang the number back and no answer.

Caller: Advertising scam

The usual crap, tell you they spoke to you 3 months prior & you gave the go ahead for an advert in some obscure publication, with a charity sounding name, avoid, avoid, avoid!!!