Originally Posted by
SamOF
I don't think this is even correct per policy. Once your itin has been disrupted, I'm not aware of any rule that you only get one bite at the rebooking apple. Which makes sense--very often you accept a less than perfect rerouting because there's nothing available on the best reroute, but if something better becomes available, DL would of course rebook you on that. I've done exactly that many times —as I would expect, without a hint of pushback
Think about how the app/website works--you can automatedly rebook yourself after a delay/cancellation as many times as you want for free.
Are you thinking about a travel waiver instead of an actual delay?
No, I'm thinking of an actual IRROP delay. The only time I've been offered in the app to change my flights a second (or more) time is when my NEW itinerary also goes IRROP. This happens every so often during WX when lots of flights are delayed. Otherwise, I pick my new flights and the "Find Alternate Flights" button goes away.
But still, OP was asking for a subsequent change, AND after he had already started traveling on a newly confirmed/accepted itinerary, AND in which all flights were operating normally, AND to a new date of travel. DL agents are often accommodating and flexible when you're trying to get around one rule, but add two or three ambiguous-at-best policies plus and international ticket and partner metal...I don't fault the DTW agent for arriving at the decision he/she did.