This is some info I copied from e-mails. Hope it is of use.
"So the Notary has stamped and signed all the pages and put in place the paper corner. Great. Now we just need to get these documents down to London .
Attached is the order form for the Apostille. On the form is a telephone number that you can use to call and pay for the services over the phone. You can contact them directly on 02078 569089 and their postal address is:
London Notaries & Com by Soni & Co.
Thomas Bretton House
10 Philpot Lane
London
EC3M 8BR