Originally Posted by
Pianoman109876
UPDATE:
I have been chasing Delta and Amex back and forth over this for the last 3 days.
FINALLY got a supervisor who admitted that Delta's website and software need to be updated. As a result, he let me use the companion certificate (both in I-fare) but ALSO offered a $700 voucher (1.5x the difference in fare) as well. He shared that he is letting revenue service know and also delta's website folks and HOPEFULLY this will be changed soon. He also acknowledged that Amex's terms and conditions are correct and that Delta needs to update.
As always, YMMV.