The website actually worked for me, and when I asked grubhub customer service if my promocode went through, they said yes.
It also shows that my promocode was applied in the order history. And I got free delivery.
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For me, I went and placed an order, then after seeing all the rage on the forums here, put a ticket into customer service to see if my code applied or not. They said no it didn't and applied it for me. Problem solved.
I don't get an error message but I also don't have the code showing as applied on my email receipt or the browser receipt. Very sad about this promo. But I am not going to keep trying to order stuff this is just stupid.
Niece ordered some food this morning via the app and applied the code to get the emote for me and it shows on her receipt as being added so looks all good for me.
I kept getting an error message, couldn't get the emote. Customer service said there was a digital limit according to someone. Sad.
Edit:
I just got off with customer service. She claimed that it was a technical error but it's perfectly fine if I order another meal with grubhub and try again. What?????? She refused to resolve my problem. At least I have the transcript.
My dudes, let's take a deep breath.
Here's all the answers you need:
https://forum.square-enix.com/ffxiv/...=1#post5745526
https://forum.square-enix.com/ffxiv/...=1#post5745604
Rokke is 100% correct, if the payment method on the receipt doesn't say promotion (just generically "promotion") AND your payment method then you need to do something.
Hopefully SE is willing to hand out codes, the promo code didn't seem to work for me tonight on the website, it kept refreshing the page and taking it off. I'll contact customer support tomorrow and see if I can still get the code without spending for more overpriced delivery.
Edit: I went ahead and scheduled a delivery for tomorrow too with the phone, it took the promo code this time, but I don't think I got free delivery. I should still only get one code since I used the same email.