My Access Code has already been used, what happened?
Did you purchase a used book?
If your access code came with a used book, the access code may have been used before. Access codes are single use. Return to where you purchased this product for assistance.
Did you register using a different account?
You may have already registered this product using a different CengageBrain.com account. If so, try logging in using your alternative account.
Still having issues?
For more information on specific products or help accessing your materials, please visit customer support