General Enquiries :
(62-21) 4390 5111 ext 0 for operator assistance
Commercial Enquiries :
(62-21) 4390 5111 ext 3321, 3323, 3324 for customer service helpdesk
(62-21) 4390 5111 ext 3210 to speak to commercial account officers
Corporate Communication Enquiries :
(62-21) 4390 5111 ext 1121, 1122, 1123