Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Stopped working properly within two months and more disappointed with Keurig's customer service

This is my second Keurig. The first one was highly dependable so I purchased another for our vacation home. Within a couple of months it stopped functioning. After e-mailing them with the issue, I was told to call which I did. I was told that it was a water issue and descaling was necessary. This is did, the problem became worse. So, I called again. They told me to follow more steps to try to fix. I already spent more than a couple of hours dealing with the issue. It was obvious that I had a lemon for it stopped functioning after a couple of months. It took me three e-mails and phone calls for them to finally agree to send me another. I have to return the unit and no return postage was offered. Now I have to spend more time and more effort for this lemon.