is possible to get the Beats headphones after the purchase using a valid student number?

I have recently purchased a new phone and Macbook through the apple store online. I only realised from a friend afterwards that as a student, they were able to get a free pair of Beats Headphones with the purchase? I was wondering if this offer is still available and if it is possible to get the headphones after the purchase using a valid student number?

[Re-Titled by Moderator]