I had a Fuji camera which did similar. It turned out to be a defective component inside the camera. Fuji do a repair service where you contact them for an estimate before repair. If the camera is old, it may not be worth the cost and cheaper to buy a later model. Sorry
Sir,
This answer is regarding Fuji Finepix A330 pictures have horizontal lines this indicates camera is working fine but LCD screen is damaged.Kindly replace in nearest camera service center.
It's a gray area, your word against theirs. Unless you can find 100 people who have had the same problem, you have little chance of making a successful claim. Hopefully, the time will soon come when induction charging and Bluetooth will make it possible to build completely sealed underwater cameras.