PS Store FAQs
Sign in to your PSN account, then go to the Redeem Codes section. You can do this on your PS5 or PS4 console (under your account menu), in a browser at playstation.com, or through the PlayStation App on your phone. Enter the code exactly as shown, confirm, and the content or funds are added immediately.
The key must match the region of your PSN account. Check your account region before purchasing: log in at playstation.com, go to Account Settings, and look under Account Information. A US key will not activate on a UK account, and vice versa. Product listings on Gamerall indicate the region, so match that to your account before you buy.