Ive just noticed that the 13a visa rules may have changed..

Note: The non-quota immigrant visa is a one-year multiple entry visa which should be renewed in
the Philippines for three (3) consecutive years. On the fourth year (3rd renewal), the applicant may
apply for permanent residency in the Philippines.
http://philembassy-uk.org/wp-content.../visaform3.pdf

Embassy of the Philippines
6-8 Suffolk Street, London SW1Y 4HG