If a ball bursts or loses significant air due to temperature fluctuations, this is NOT covered under warranty and is not a valid reason for return or refund.
The ball should only be inflated to game pressure during active use. Otherwise, release some air. Do not store the ball in direct sunlight (e.g., on a beach or behind a window), as it may burst. Similarly, moving the ball from cold outdoor temperatures to warm indoor storage can cause the air to expand, potentially damaging the bladder.