I signed up for the "promotional membership" for $2, and then after 3 days they'll charge me full membership. I was gonna buy a book for my thesis and i was desperate for the copy so I decided to input my card details and just cancel my membership after I downloaded it. Once I submitted my details it only said "must be logged in" and I was $#*!ing logged in. I tried to search on how to cancel my account and it didn't have that option. I HAD TO CALL MY BANK AND CANCEL MY CARD AND REQUEST FOR A NEW ONE. DO NOT GO ON THIS SITE!