They did not. I honestly do not think they care.
The only takeaway for players like us is to avoid taking part in any future crossover promotions between Square Enix and other companies for any digital item/code, unless you already have an established trusting relationship with whatever company happens to be involved in the crossover. E.g. I've had a lot of positive experiences with L.L. Bean. If they did a crossover with FFXIV (unlikely, lmao), I'd be willing to give it a go.
My spouse and I are both extremely hesitant, though, to trust any digital crossover thing moving forward because SE responded to us approximately 10 times saying they wouldn't do anything to fix or handle the situation. I'm just still glad that we got fully refunded from Grubhub for both orders, getting back approx $90 cash. We will never, ever use them again, and if you want a laugh, we write and mail a new year's letter to all of our friends and family, and in this year's letter, we included a section warning them all to avoid using Grubhub because they're scam artists. (Not only did they screw us out of the emotes, but my spouse's order was from a fake restaurant that they didn't even vet, lmfao. I warned all my relatives/friends about this!! But I have to say it was hilarious and we still joke about the "restaurant." It was actually some random convenience market using a fake name on Grubhub, and all of the menu images were actually stolen from various restaurant web sites around the United States. I laughed so hard.)
Anyway, the other important thing is to warn other players every time any future crossover comes up by doing things like responding to this thread to keep it current in the forums and to post on instagram, twitter, etc. to spread the word warning others and reminding them that you were screwed over in the last crossover and they might be the ones screwed over in the next.
I hope that you at least got refunded from grubhub during the time window. If you didn't, I think your recourse at this point is pretty much non-existent.