Used a 24 shot disposable camera until the dial was finally down to 0 and I took it to get the photos developed. They said they'd call me when they're ready which they never did so I went to check on them. She gave me them, showed me one photo which came out lovely, I was happy so I left. When I later looked at the contact sheet there were only 14 there, and a few were black. Can someone tell me what's happened here? Is it a fault with the camera? And if so, do you reckon I could be refunded?
Edit: The orange marks (light leaks?) are on the negatives too. Also, curiously the last image on the contact sheet which is half bleached definitely wasn't the last photograph I took. The camera doesn't seem to have captured the last photograph for some reason. I also used the camera as normal, definitely didn't tear anything open. Always used the flash, and never noticed any flash failure.