This is a common scam. The only official numbers are listed on Delta.com (https://www.delta.com/us/en/legal/privacy-and-security/protect-your-data https://www.

This is a common scam. The only official numbers are listed on Delta.com (https://www.delta.com/us/en/legal/privacy-and-security/protect-your-data https://www.delta.com/us/en/legal/privacy-and-security/prote...).