Instruct: Classify Amazon reviews into positive or negative sentiment
Query: One touch can opener

I already had a One Touch Can Opener that worked fine for several years. It suddenly stopped working. It would puncture the can but not cut around it. I ordered a new one upon trying it out, it did the same thing. It would not open the can. I sent it back and received a full credit for the purchase price and shipping. I hate that the product did not work, but appreciate the prompt credit.