Just seems like they give you the run around if you aren't a paying customer.
Did you talk to whoever gave you the code from your school?
2014-2015
or
2015-2016?
Same problem. 2013-2014
As Jeff recommended go to the Instructor and make sure it is correct.
If you got this from a fellow student there maybe problems like the school has not renewed their SW license or it is the wrong one for this semester.
Did you talk to whoever gave you the code from your school?