Ok so I rang BA who said they couldn’t see the newly issued eticket…I know that’s bull as previously had confirmation of one sector of the new eticket confirmed by BA….then called AA back and they contacted the Oneworld desk who confirmed that all Oneworld members using Amadeus could see the new eticket….so even though when requesting eticket confirmations from those members of the alliance that show you the eticket there is no reference to the newly exchanged ticket….AA confirm that in the event of an issue at checkin the agent can see the latest eticket….hope that’s correct 🙏