A netizens received a fake email from Singpost, prompting the receiver to make a $2.99 payment.
The link will lead netizens to enter their credit card information, expiry and 3 digit code.
Here is what the netizen said:

Hi! After receive this email please do not enter your credit card and make payment $2.99 this is a scam which I did not purchase anything at all. – Just to share awareness ‘the new tactic of asking you to pay for’ ” no customs duty paid – Your package could not be delivered on 2.5.22″
SCAM
For more information on scams, members of the public can visit www.scamalert.sg or call the Anti-Scam Hotline at 1800-722-6688. Anyone with information on such scams may call the Police Hotline at 1800-255-0000 or submit information online at www.police.gov.sg/iwitness. All information will be kept strictly confidential.