Happy New Year and Welcome to the Community!
Since your issue deals with the specifics of your account, you would need to contact customer service so they may look into adding that promotional offer on your line. In addition, they can also be contacted via Live Chat, Facebook, or Twitter. Those methods can be accessed via the contact page posted above.
You should note that those International minutes are only for the long-distance portion on calls to certain Countries. You can view the include Countries here. Airtime charges would still be applicable.
Hope this helps 🎉