Hi JBT,
When we brought my step-daughter, then 9 years old, here to the UK, she didn't attend a seminar, but we did have to fill a form in at the NAIA to get a CFO sticker on her passport. It cost about P200 - P250 and we also had to pay Philipinnes Travel Tax for her but less than the full amount, about P1,000.
Iain.