Did that before I realised the situation, waiting for a reply.
@Scottish Thailander I appreciate where you're coming from but they themselves told me in no uncertain terms that they're closed.
The Passport Adviceservice eventually told me I'd just have to wait for them to open again, which could be who knows when, probably too late if they're going to take 11 weeks to process my renewal.
Disregard everything, I've received a reply from VFS attempting to establish an appointment date. My bad! ????
They told me on the phone they were closed and couldn't help ????