1. there is no need to run after him to know his whereabouts or begging money from him.
2. Go and file a case for maintenance under PWDV Act wherein you can apart form claiming maintenance for you and the child can seek damages, compensation and deference order as well.
3. if you think that the marriage is broken irretrievably then file a case under 498A IPC in which you can seek restriction son his foreign travel.
4. The passport authority at its discretion can impound his passport if he does not submit himself to the jurisdiction of the court once you file those case as advised above.