Hello all:

I booked a domestic award ticket in first for two persons. When I paid the $20 fee via CC, the system responded that there was an error and to try again. But I got a confirmation email and the booking shows up on my delta account.

The two outbound segments shows First (RD) and the two return segments show First (R). What is the difference between R and RD. Is this possibly related to the error? Should I be concerned with the error message and call and confirm?

I searched for an explanation of R and RD but no luck!

Thanks!