My spouse & I both took part in this campaign -- which at this point I think is more appropriately labeled a scam.
First, my order: Totaled $41. Entered Endwalker code multiple times. Each time, it mysteriously vanished shortly after entering. Used the link from Lodestone. Set up the order again. Saw the promo code. Processed the order. Promo code mysteriously vanished after payment. Immediately contacted customer service chat. Spoke with a rep who assured me the code had been applied. Had a transcript of the chat emailed to myself for my records. Looked at the receipt page: Did see Endwalker code.
Fast forward to today: No emote code received from Grubhub. Reached out. Spoke to chat rep. They told me the code had never been applied. They told me this even though I could literally see it on my screen in my recent orders through Grubhub. I insisted they needed to fix the situation. They transferred me to a supervisor. He hung up on me. Seriously. S/he immediately left the chat. Another chat rep came. I reiterated to them the situation. They told me that the code *had* been applied but that, unfortunately, they had run out of the emote codes for game redemption.
They passed me along to a supervisor. The supervisor reiterated that they had run out of the emote codes. I showed him the link to Lodestone's campaign page about the event. He responded by giving me this link: https://www.grubhub.com/promoterms
He said to see the terms & conditions there, the first line of which says, "Limited supply available (expect high demand). FINAL FANTASY® XIV Online “Eat Pizza” emote item codes will be assigned on a first come, first served basis while supplies last. FINAL FANTASY® XIV online pizza emote codes will be sent to eligible recipients via email to the email addresses associated with their Grubhub accounts."
So... On the lodestone campaign page, no where does it mention that Grubhub was given a limited number of the emote redemption codes, nor that these codes would apparently be randomly distributed to random email addresses that used the ENDWALKER code during the campaign. I say random because I have been reading through posts on Reddit & Twitter, and there are folks who used the code on the very first day, within the first hour, who have also been told by Grubhub that there are no codes left.
I honestly feel conned. If I even consider taking part in any future FFXIV crossover promotion for an in-game item, I will be certain to seek out the other company's terms & conditions and read through them with a fine-tooth comb to see if it matches Square Enix's advertising on the Lodestone page.
I did reach out to Square Enix. I got a canned PR response telling me that they will not do anything to fix the situation. They said I have to handle it with Grubhub... notice the closed circle.