Hi, I just brought an used Ibanez RGA42FM for my son's beginner guitar lesson.

When I took the guitar home, I saw one of the pole (on 4th string) on the humbuker that's closest to the neck is a bit elevated than the others. The rest of the poles on both humbukers are all level.

Does this indicate that this guitar has been damage? Or humbukers have been replaced before? Will this cause problem or need any replacement in the near future? The guitar store has a 30 days return policy so can someone knows about this guitar kindly let me know? Much thanks!!