Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Uniform is Not What's Pictured

The karate uniform we received had 3/4 length sleeves. When we tried to exchange for what's pictured we were ignored until I e-mailed Amazon to find out why. We eventually received a refund with the seller explaining an exchange was not possible because we wanted full length sleeves on the karate uniform. (Like what's pictured!) The sizes also run small.