Sorry for the length of this, but I am hoping one of the more experienced Frontier flyers can help me with my question. In late July, I flew the following itinerary: Flight 1550 from DFW-ATL with a 5 hour layover. Flight 2001 from ATL-LAS. My return flight after my LAS trip was completed was Flight 2124. When I received my summary of Frontier Miles, it did not give me credit for my DFW-ATL flight (732 miles). I filled out the Request Miles Credit form and was messaged back by a "Reservation Specialist" that only the ATL-LAS and LAS-DFW flights would accrue miles. I then looked at the Frontier website in the Terms and Conditions section under Accruing/Earning Frontier Miles and found the following:

1. On trips between origin city and final destination that include a connection requiring a change in aircraft with a new flight number, mileage will be computed based on each flight segment. A segment is a flight between two airports using one flight number, regardless of the number of intermediate stops or changes of planes.

I wrote back to the Reservation Specialist and included the above statement and asked for an explanation. I simply received another reply that was exactly as the first, that only the same two flight would accrue miles. There was no explanation as to why this was the case despite the airline's statement under the Terms and Conditions. I did change aircraft which included new flight numbers. Is my request valid or am I interpreting the statement incorrectly? Has anyone else faced this issue and, if so, what was the outcome? I am fairly new to Frontier and was a bit disappointed in the response of the Reservation Specialist in not giving me the requested explanation as to why the miles were not credited.