Hi
I would say you have to collect, if the upgrade team are only contacting people 24 -48 hours before travel there wont be enough time for them to post it I wouldn’t think, I phoned them up yesterday and was told I can upgrade on the 9th June as that will be 6 weeks after I applied and 14 days before I travel (23rd June, I asked could she tell me which passport office was dealing with it and she said they will tell me when I ring on the 9th June, My mind is still not at ease as reading stories of people finding out where there passport is by online chat and then just driving to that office, so now I am debating doing that if I can find out who is dealing with it