To report a tip-off, provide detailed information including venue name, location, dates, times, and any involved individuals. Submit your tip-off form or call us at 1300 599 759. Alternatively, mail the completed general tip-off form to VGCCC at GPO Box 1988, Melbourne VIC 3001. Tip-offs can be submitted in Mandarin, Cantonese, Greek, Vietnamese, Arabic, Khmer, or Assyrian.