https://forums.serebii.net/threads/22-ways-to-call-delta-airlines-customer-service-via-phone-email-or-chat-options-step-by-step-guide-explained.791154/https://forums.serebii.net/threads/22-ways-to-call-delta-airlines-customer-service-via-phone-email-or-chat-options-step-by-step-guide-explained.791154/https://forums.serebii.net/threads/22-ways-to-call-delta-airlines-customer-service-via-phone-email-or-chat-options-step-by-step-guide-explained.791154/