Https://official-delta-airline-support.neocities.org/en/us/help/guide/how-to-contact-jetblue-airlines-support-for-upgrading-your-flight-class/ https://official-delta-airline-support.neocities.org/en/us/help/guide/how-to-contact-jetblue-airlines-support-for-upgrading-your-flight-class/