Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Not so elegant sheets

After only one usage and washing pilling of the material made reusing them uncomfortable. When I tried to return them I was refued because 30 days had expired. We hadn't used them until then. I have a balance in my account to use. Other than that we will not be buying from Amazon anymore. Imagine if we were to buy early gifts for someone which had been in our plans. Also, I have since read other complaints of the product with similar responses, yet you still sell them.