Got 2 BE seats to Africa on DL and KQ. We want to change the dates on some KQ shorthaul flights in Africa, not touching the longhaul segments we found in Low.

Will we have to redeposit miles, give up all flights, and hope that the Low TATL seats return to inventory, or are DL agents able to only change the necessary flights?

Miles came from a Plat acct, so no change fees should apply >72 hrs (a few months out actually).

Does anyone have any experience with this?

Thanks