Have not received email with Creative Cloud license key

I have tried about ten times now to buy the student version of creative cloud, but every time I do, I'm told that I will be sent an email within the next business day. I have not yet received an email. I have checked multiple times - all the information I entered is correct, and the email was not sent to my spam, etc, etc. Any suggestions for what my next step should be would be greatly appreciated! I really need CC for my classes, and my free trials have expired.