MANILA, Philippines?A British national and his Filipino wife on Tuesday sought the help of President Gloria Macapagal-Arroyo in finding their 17-year-old son who has been missing since January 22.

In a press conference in Camp Crame, Quezon City, David Woodhead said his son Marc Woodhead left their home in Legaspi Village, Makati City, and has not been seen since.

Woodhead, who owns a Makati-based company that supplies fiber optics to local telecommunication firms, said they were stumped by their son?s disappearance.

He said he had no reason to suspect business rivalry or anger at his son by someone for his disappearance.