You will need a Wolfram ID to complete the key request form. If you do not already have a Wolfram ID, create one at user.wolfram.com. You should use your UA provided (@crimson.ua.edu) email address as your Wolfram ID. You will receive an email from Wolfram to verify your email address and complete the registration process.
To request an activation key, click the following link, login to your Wolfram account, and complete the form: https://user.wolfram.com/portal/requestAK/ade7755b225a6914f201dce3fd12a2a36d63d189
Once you submit the activation key request form, your activation key and a download link for Mathematica will be emailed to the address associated with your Wolfram ID. If you do not receive this email, be sure you have verified your email address when creating your Wolfram ID.