Why choose hwangdbs investment bank berhad? It also allows investors to have 24-hour online access to all information pertaining to investment decisions from a click of the mouse. Since its inception, HwangDBS Investment Bank Berhad has continued to be the market leader in Malaysia.How do i contact dbs bank from overseas? 1800 339 6963 (24 Hours) (65) 6339 6963 from overseas. DBS Phone Banking and General Enquiries. 1800 111 1111. (65) 6327 2265 from overseas.How do i get in touch with dbs? DBS Phone Banking and General Enquiries. 1800 111 1111. (65) 6327 2265 from overseas. 8:00am to 12:00am Mon – Sun. POSB Phone Banking and General Enquiries. 1800 339 6666. (65) 6339 6666 from overseas. 8:00am to 12:00am Mon - Sun. DBS Wealth Management Phone Banking and General Enquiries.What are the working hours of dbs bank? 9:00am to 12:30pm Sat excluding Public Holidays. Corporate Banking / SME Banking. DBS Phone Banking. 1800 222 2200. (65) 6222 2200 from overseas. 8:30 am to 8:30 pm Mon - Fri excluding Public Holidays. General Enquiries.