You can login into the CUGE's TMS portal using Singpass to retrieve your certificates for CUGE's Programmes.

Refer to the following link on how to view and download your certificate: https://cugetms.nparks.gov.sg/Home/FAQ

For WSQ certificate, you can download your certificate via the Skillsfuture website at https://www.myskillsfuture.gov.sg/content/portal/en/public/download-cert.html