Don't ever use this website to order books or service. The customer service never answer the phone and their online products are fraud! They charged me $99.99 annually for the service which I have naver used for past two years. I tried to called tham ten times and waited more than one hour and able to talk to a representative. The representative told me that iit was my fault (100%) that I didn't cancel the service two years ago. She said that the account automatically renews and charges automatically on my credit card annually unless I go through the canceling process. AND GUESS WHAT. I couldn't able to cancel the service online!!! The CHEGG website keep shows that they have a system error so I couldn't cancel the account! DONT EVER USE CHEGG. COM