https://forum.eternagame.org/t/full-list-of-delta-airlines-24-7-customer-service-numbers-usa-2025/5499
https://forum.eternagame.org/t/complete-list-of-official-delta-airlines-customer-contact-numbers-in-the-usa-full-detailed-guide/5501
https://forum.eternagame.org/t/delta-customer-service-usa-contact-numbers-guide/5502