Looking at the above posts gives me a little hope!
I have sent my passport for renewal to the Durham office, my current timeline is below;
Application being processed 1 June 2020
Documents received 1 June 2020
Application received 18 May 2020
Application submitted 18 May 2020
I had to send my passport from Switzerland and now just crossing fingers and waiting!
I will update when I have more news as I am hoping to move to Hong Kong with my family in late July!