My situation is very different from most posters, but FYI my situation is this:
Family relocating to UK from Vietnam in early July
Applying for a renewal for one child and a first passport for the other
Liverpool have confirmed receipt of my documents on 3 March
For the first passport they asked for more information which they didn't receive from me until 29 April-difficult to get suitable information as my children were born in Vietnam. Documents need officially translating, etc.
I have phoned them (not exactly who "them" is, but it is the number on the website)
First couple of times they sounded reassuring that the information had arrived and passports wouldn't take long.
9th May phone call, was told they would email Liverpool and someone would get back to me within 72 hours (still waiting)
19th May phone call, was told there was a problem with my application, but they are not sure what it was and they would email Liverpool and someone would get back to me within 3 full working days (still waiting)
26th May phone call, I was told again that there was a problem with my application and someone would get back to me probably on the 27th. I was also informed that the week before they changed the waiting time for a first passport from Vietnam from 6 weeks to 16 weeks. No mention of how long a renewal takes. - still waiting
I still have a month to go, but this uncertainty is making things a nightmare.