OK, but... you already had the SEC in your collection and you are now playing for the Gift card. Is it the same case? Usually, after winning a SEC, subsequent prizes had a different value. Hmmm... weird.
I'm not going to check this out myself. I don't believe in my luck. Besides, referring to your statement:
Spent 515 credits and got 5 gift cards.
plus about an hour of fun playing the 25 game.
500 credits costs 50€ (~200,- PLN in my currency). I know much better ways to get rid of 200,- PLN
😊