That does seem the case. It's been a month now for one of my children's passport. Because of dual nationality they want a copy of the other passport (they actually say send the foreign passport - but having checked with the embassy that's not acceptable). Even though this is just a renewal and the child is on the system, the photo has been verified, and all that stuff it does seem to take an inordinate amount of time.
We're very lucky that we do have multiple passports so we can still travel - it does feel it could be slicker considering they have all the information and nothing has changed since last time. I.e. name, address, DOB, parents etc....
heres ours timetiline
wife and daughter submitted renewal requests on 29th May. we have no holiday booked, but at the same time said if they come back in time, we go abroad.
wifes timesline - bear in mind she has also submitted a change of name request at the same time to her married name.
submitted application online - 29th May
marriage cert and old passport sent via special delivery and delivered 30th
acknowledged as received by HMPO - 7th June
Approved 15th June
Printed 15th June
Delivered via TNT on 16th June
not so bad, less than 3 weeks.
however..
daughters application, straight forward renewal
submitted 29th May
old passport sent via special delivery 30th may
acknowledged as received by HMPO 2nd June
email sent to me by HPMO on 10th May -
they want a copy of marriage certificate to proves wifes name change
telephone call made to enquiry line, totally hopeless, promised call backs endless times, advised to send a cover letter with both application references so they can "link" them to share documents. this was sent and delivered 13 June. no response. online enquiry submitted
call back finally received on 15th June - explained situation, put on hold for
48 Mins finally put through to someone helpful - took all details of daughters application ad wifes application and assured me not to panic as this is common occurrence. has now apparently "linked" so should go through.
as of today, no further update received.