Would you be happy to share some more details from your Special Delivery tracking?
My unacknowledged envelope was scanned as ‘delivered’ just after 0700 with a name of ‘Passport Office’. The signature reads ‘DWS’ i.e. delivered without signature.
A friend’s envelope, which was acknowledged within 2 working days, was scanned around 0945 with a name and proper signature.
The only other thing I can think of is that my envelope contained a lot of supporting documents as it was a non-standard application. Whether a damaged passport enters the same ‘complicated’ queue is not something I know.