Business Hours Our support Hotline is available 24 Hours a day: Monday-Friday: 9am to 5pm Saturday: Closed Sunday: Closed Contact Info Address:Ruko Union Square No.21 Jalan Boulevard Raya Gading Serpong Tangerang – Banten 15810, Indonesia.Phone:+62 21 5399 032Fax:+62 21 5399 187Email:[email protected]Opens in your applicationWebsite:www.globaltwinstar.comOpens in a new tabWe’re also on social networks