Thanks for the replies everyone! The ps4 was a gift so I have no idea which store it was bought from (I'm suspecting it was EB games but I dunno which one) and I don't have the receipt obviously but I'll try and find out if I can get it looked at.

I'm gonna try the corner thingy Tyson! I've read about people removing the shiny top flap to tighten the manual eject button with a screwdriver but I don't even want to try that unless I really have to, so hopefully the corner thing works. My room isn't well ventilated at all either cos my roller shutter is busted so my window is permanently blocked until I get it fixed :/