I received my sons passport today. It’s been in the system since Beginning of March. I upgraded on the 5th May as travelling on the 19th.
Don’t bother ringing the advice lines. Make sure you speak to someone from the progress team and make sure they send your application for upgrade. The first time they didn’t and I lost 2 days.
Hammer the emails to make sure they have your evidence. They receive them but you don’t always get a automated reply.
Go to your local passport office. I went today and made it clear I was not leaving without a passport, they will help if they can. Be polite but make it clear you want them to contact the office dealing with the upgrade and they will. They called Peterborough and by the time I went back outside to wait they where on the phone. They didn’t charge either and And it was printer within 2 hours.
Good luck everyone.