I fly tomorrow. Applied for an upgrade for my sons first passport 2 weeks ago and sat tight until a couple of days ago. I wanted to keep faith that they would call and I was determined not to block the inboxes of the upgrade teams. I did call the progress team a few times and found out my upgrade had been moved from London to Durham.
Yesterday I cracked and decided to start chasing. I went up to the London office, spoke to someone, but this didn’t help at all.
I then emailed the upgrade team stating I fly in 2 days and that I am still waiting for the call. Last night I gave up hope and we decided half the family would go ahead, and the rest would follow if/when the passport turned up.
I emailed again this morning around 7am with the subject FLYING TOMORROW. Got a call at 1030am from the Durham office and they told me I could pick it up from London at 130pm. I just got back from a successful trip.
All circumstances are different but advice from me: don’t give up, it was approved and printed in 3 hours. Despite wanting to give the system a chance and let the upgrade teams do their thing, I would recommend waiting until you are 2-3 days out from flying and then sending a couple of emails a day. Phone calls and visits were largely ineffective for me.
Good luck