Bests & Worsts Reviews from Amazon

I purchased this book/online program for my sophomore college student daughter. The book came on time, but the access code to the online program was already used and this was not disclosed to me when I purchased it. Why would I purchase a computer program if it is invalid and we can't get on line? The professor uses this program in his class because going on line for assignments is a REQUIREMENT of the class. Buyers beware! I have requested help with the refund policy and I'm awaiting a response.