As Frances says if you have the ref. numbers already it is possible to pay £3 to see the copy
register [& many people do that ]just making their own
handwritten notes.
If you wish to have copy certs. you fill in the forms ,with
your refs. & pay in advance. As it explains on the website 2 registrars man the phone, enquiry desk &
receive clients there to register BD. If you wanted one
copy they would be able to make it immediately.Copies
are handwritten in your sight with bottle of ink . Multiple certs. would be processed when time available.