HI. You can try this site, http://www.philembassy-uk.org/userfiles/file/rom2.pdf
I asked about this report of Marriage from the DFA in Manila, i asked if me and my husband needed to submit this though were married here in the Philippines. I was informed this is only submitted by Filipinos married in the UK so the marriage can be reported and recorded in the Philippines. I am just not sure if the DFA will be the agency responsible in forwarding the wedding info to NSO.
Maybe you can ask this when you visit the Phil. Embassy. BTW, they have a new Consul general.
Hope the info is of help. ^_^
