Broken games

Hi everyone, i recently purchased a copy of the Simpsons game and Spider-Man ultimate from Cex, when I tried both the games neither worked , so I took them both back to my nearest Cex , they replaced the Simpsons game there and then however Spider-Man ultimate they had to call a store in England and have them send it to my house . The new Simpsons copy didn’t work and upon receiving Spider-Man ultimate today that does not work either , I have already returned the simpsons however I’ll need to return Spider-Man tomorrow , my question is are they going to think I’m at it ? I know it’s not my PlayStation 2 it reads all my other games perfectly well , just don’t want to go in store tomorrow and get accused of lying or something as this will be my 4th visit in the space of 4 days , any replies are appreciated 🙏