How do you pay the full Travel Tax?

: For those with tickets issued outside of the Philippines, payment is direct to the PTA Travel Tax Office; For those whose tickets will be issued in the Philippines, payment is through the airline/travel agency.
IMPORTANT REMINDERS; Travel Tax Exemption/Reduced Travel Tax Certificates can only be issued by the PTA Travel Tax Office; Air tickets which will be issued in the Philippines will only be released upon payment of the Travel Tax or submission of the Travel Tax Exemption / Reduced Travel Tax Certificates to the ticketing office.