I am unable to download digital death certificate from My Legacy website even though it is within 30 days

You can download the digital death certificate from My Legacy website if the person has passed within 30 days from the date of issuance of death.
Please check if you have entered the information - i.e. death certificate number, date of death and deceased's NRIC number correctly.
If you have the Confirmation of Death number but do not have the death cert number, you should contact the doctor or hospital to ask for the death cert number, as the doctor may have overlooked to input the Confirmation of Death number into the system.
In the absence of a death certificate, you can use the Confirmation of Death document to arrange for the funeral and apply for cremation/burial. If you do not have this document, please approach the doctor/hospital for it.
If the doctor has already certified the death online, you may try to download the digital death certificate 24 hours later.
If the digital death certificate still cannot be downloaded, you may contact ICA at ICA_DPU_RBD@ica.gov.sg for assistance.