I'm currently in the middle of a DONE4 ticket issued by the AA RTW desk. I've been trying to change the date of a ZRH-LHR- PER leg. ExpertFlyer is showing D6 for the LHR-PER leg and it also shows as available on the OneWorld RTW tool. However, AA RTW desk Is not able to see the space. They either see D1, nothing, or if says D6 and then the leg comes back unconfirmed. Any tips? I appreciate this great resource!