UPDATE: Praise your choice of deity, I found it!
UPDATE AGAIN: Due to a number of people wanting to know where it was found - I sold my car a couple of months ago and had a bag of stuff I'd removed from the car before it was collected, the bag contained my passport among other things (and a pair of sunglasses - handy!) and was living at the bottom of my wardrobe
I am a UK citizen, born and lived in UK all my life. I have a valid UK passport, I believe it expires in about 2 or 3 years. But I can't find it and I go travelling in 4 days from now.
I intend to visit the following countries: Netherlands, Belgium, Germany, Luxembourg, Austria, Italy, France. I will be travelling by ferry between England and Belgium (and the reciprocal on the return) and all other travel will be by private car.
I am happy to pay whatever the cost is for a replacement passport but I'm not sure how to get it quickly enough.
On https://www.gov.uk/get-a-passport-urgently it suggests that I can get one urgently but only if mine is expired or due to expire soon and I cannot use that service if mine is simply lost.
In a panic I tried to phone the passport office on 0300 222 0000, which is the number listed on gov.uk, but it seems fully automated and only tells me to go online and do it there, which I have already failed to do.
Some Googling found this page https://europa.eu/youreurope/citizens/travel/entry-exit/eu-citizen/index_en.htm which strongly suggests that I'll actually be fine without a passport, but I have contacted the support centre for the ferry company and they confirmed I will absolutely need a passport to travel with them.
The only other photographic ID I have is a full UK photocard driving license, which the above page explicitly excludes as a valid form of identification.
Will I be okay travelling through these countries between 23rd June and 10th July with no passport present? If not, how can I expedite the passport application process? It seems impossible to actually speak to anyone at the passport office.