Had the same thing - missed call, no message - suggesting someone trying to sell me something?!

Missed call, didn't leave a message.

This number came up as a "missed call" on my Telstra line & I'm reluctant to call it back in case it's a "scammmer call"... I only know one person in Queensland & it is not their number, but I wish to know who it was who called as I do have friends travelling the world who may have called from Queensland but didn't leave a message for whatever reason...