Hi Juan Liang,
Thank you for taking the time to write us a review.
Our sincerest apologies for this experience. As Petso, we care about customers, and we value your feedback. Petso doesn't have any control over the transport of the cat litter from our store. As it is impossible to avoid road bumps and parcel collisions during transit packing may tend to loose vacuum and the insides may leak.
Rest assured that so long as the cat litter inside the packing is dry , the quality and function of your cat litter are still preserved, so you can still use it with confidence.
Your patience and understanding are greatly appreciated.
Sincerely,
Petso