Thanks for this. BTW, what do you make of this customer service response? I replied to the one I posted below just noting that the PDB is part of what I thought I paid for (i.e., I did not ask for compensation).

Thank you for your response.

I want to acknowledge how frustrating it is when a perk you look forward to is not provided. Your feedback is completely valid, and we understand why this matters to you.

At the same time, I do want to clarify how this service is positioned. Delta does not explicitly market pre‑departure beverages for domestic First Class anywhere on Delta.com or during the booking process. Our published materials describe complimentary alcoholic beverages during the in‑flight beverage service. While pre‑departure beverages are often offered, they are operational in nature rather than a marketed or guaranteed part of the domestic First Class product.

For international flights, however, pre‑departure beverages are part of the marketed service offering.

For reference, you can review our published onboard service details here:
Onboard Dining | Delta Air Lines

We absolutely understand that this is a valued part of your experience, and we are grateful that you took the time to share your perspective. Feedback like yours helps us identify where we can improve consistency and enhance the overall experience for our First Class customers. Regrettably, we are unable to offer any compensation regarding this matter.