Date: 4 August 2021
Please see below update from Bureau of Immigration
Affected passengers may email your Marsman Travel Consultant for clarification and assistance.
Our standard operating hours starts from 8:30AM until 5:00PM daily. For emergency support, after office hours and weekends, you may reach us through our hotline, +63918 979 0937 (Smart), available from 5:00PM to 2:00AM (next day).
Marsman Drysdale Travel Inc.
SOURCE: https://safetravel.ica.gov.sg/health/covid19-tests/pcrtest