@es1202 my application (a renewal from the US) took 18 days from the Post Office confirming delivery in Durham, and the Passport Office updating status to “Documents Received”. During this time I received a number of e-mails asking me to send my old passport. I think it is just taking a long time to get the documents into their system, even after they have physically arrived. If yours is on a similar timeline, it should be changing status within the next few days. Once received, mine went through approval and printing quite quickly, and I just received it today.