Do you know where your passport application is ? Try emailing
[email protected]
Where xxx is the office - e.g. Durham
Within 2 weeks of travel .
Also try calling 03001231973 you need to speak to the progress team
If all else fails you can go to a passport office and from what I've read if you've been waiting 10+ weeks and you are travelling they will manage to help you. I did read that London is less helpful about this
I had a similar stress but emailed and called and chased and it went to print in a couple of days. For you if possible I'd try have them change it to be collected