Originally Posted by
aacharya
No, the CO Agent informed you incorrectly, or you mixed the two options.
Not really. The OP is talking about changing the return date by a week. It has nothing to do with the SDC program.
And the OP must have begun the trip (outbound segment completed, I believe, not just checked in) or the entire ticket re-prices. And since they are part of a group the group rules take priority.