Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worst buying experience ever

I bought the depot diaper bag from this company twice! First they sent the wrong bag and never returned contact. The second time was on a time limit, so I ordered with UPS next day delivery. I never received the bag. I called every day for a week, and no one answered the phone. When I e-mailed they said they would look into it, and I never heard from them again. Their diaper bag is well organized and easy to use. Their customer service is so terrible that I will never use them again. They are without a doubt the worst company I have ever had dealings with.