If any of the following apply, you should contact the Delta Airlines customer service department to change or cancel your flight:
There is a problem with the official Delta Airlines website, making it impossible for you to change or cancel a flight on your own.
attempting to change a flight but being unable to view eCredit.
when other airlines issue tickets for a new flight.
Enhanced tickets purchased using miles or other discount coupons.
a grownup going with a baby in their arms.