Reach out to us We'd love to hear from you! Here's how you can reach us. Visit our office Adelaide 322, King William Street, Adelaide SA 5000 Melbourne 4/F, 152 Elizabeth Street, Melbourne VIC 3000 Email Drop message to our mailbox. info@bigpos.com General Enquiry Call us through our general line number. 613 9021 2299 Technical Support WhatsApp us for technical support 614 2696 1756