Quote Originally Posted by Maxilor View Post
I ordered through the website and it worked just fine.
The Lodestone specifically mentions you have to order on the app. Though, with how this promotion has been so far, it would not surprise me if that was not the case.

"Order at least $15 worth of food (before tax, tip, and fees) and use promo code ENDWALKER at checkout on the Grubhub app."