Not really sure where this belongs, but thought I might stupidly ask out of curiosity given I've never won anything.
Do most organisers of competitions generally give a person a call or email notifying said person that they won, or is it a thing that organisers can choose to publish the winner however they want, say on a website, and not contact them personally, and it is up to the winner to find out they won?
Asking this as I was reading the T&Cs of the Isuzu Ute competition and it states that the winner will be published on their site. Nothing about contacting them directly.
If this is the case, isn't it possible that there are several people who may have won something but not do their due diligence in checking they won?
From personal experience, usually they attempt to contact you. There's often a time period within which the person has to accept the prize or it'll be offered to someone else. Sometimes they also contact you to confirm delivery address and other details for bigger prizes.
For the competition you mentioned, it says "The Winner will be notified by telephone and email."