I presume you're a PCA subscriber and have received your magazine by post before it's official release date of 20th (of each month).
I believe the competition is not officially open on the web site until the official release date of the mag.
OnePlus 5 review
Alice Saey's mesmerising animation for Dutch singer Mark Lotterman
iPad Pro 10.5in (2017) review
Comment booster votre iPhone ?