In 2011, the PlayStation Network was breached which endangered the private account information of various users and resulted in a shut down of the network. 4 years later a settlement was reached and those who claimed to have been affected were able to select from a variety of different forms of compensation. These included a free game code for a PS3, PSP, or a PS Vita game and themes of their choice. There was also an option to obtain a PSN subscription or credit instead.
Almost 5 years after the incident, claimers are finally receiving their game codes via emails. If you made a claim during that time, check to see if you received yours. If you downloaded a free game when PSN got back online through the “Welcome Back” offer, you’ll get one game. If you did not, then you should be able to get 2 games.