So here's a new one… During some instant win competitions now, the promoters have developed this idea of "winning moments". I just went to enter a Vaalia competition, which gives the chance to win a prize every hour, however deep inside the T's and C's it would appear that there's only a 3 second "winning moment". Meaning that you can only win inside a 3 second window every hour…
Sneaky!
There are up to 2,300,000 unique codes that will be issued on the inside of Eligible Products for this promotion, however winners will be selected by a computerised random system based on pre-determined times. A three-second winning moment will be randomly selected every 60 minutes throughout the Promotional Period and one (1) prize will be available to be won for each winning moment within each 60 minute period. The first valid entry received during that winning moment, will be the instant winner. If no valid entry is received during that winning moment, no prize will be awarded in respect of that 60 minute period of the Promotional Period.
https://www.vaaliapromo.com.au/terms
So they randomly decide for today's 11PM hour slot, the first person whom entered from 11:21:05 to 11:21:08 would win a prize. If no one did within those 3 seconds, no prize.
Super sneaky.
Another reason not to trust or bother with competitions.