Originally Posted by markle

It's worth your travel partner being aware that (at least in my experience) the Passport Office will consider a tear such as this as a 'damaged passport replacement', and ineligible for same-day service at Victoria.

The fastest quoted processing time is 1 week, which still involves dropping paperwork off at Victoria - in my case I got the passport back in the mail 72 hours later.

Also, worth being aware that a damaged passport replacement requires your photos to be countersigned, which can also add some complexity / hassle.