Is Apple Pay supported in Philippines?

I don't think Apple Pay is supported in the Philippines

See Countries and regions that support Apple Pay - Apple Support

Merchants are able to support Apple Pay transactions through their credit card processors. However, Philippine banking regulations do not permit Philippine banks from supporting Apple Pay.

Are you in a country or region that supports Apple Pay?

Countries and regions that support Apple Pay - Apple Support

Does your financial institution support Apple Pay?

Apple Pay participating banks in Asia/Pacific, Africa, Europe Latin America, Middle East and United States - Apple Support