I think i got infamous 2 for free on psn?

i downloaded the free game trial of infamous 2 but canceled it cuz it takes a long time to download.then the next day i checked my download list and infamous 2 the full game ($59.99) is in there. i went to the psn store and it says i downloaded the full game!! so i checked my email if i got any mails that says i bought the game but there was none!! So is this a glitch or it is still the free trial game that is gonna end in an hour? Are any of u guyz experiencing the same thing?