When you received unsolicited phone calls, don't provide your details at first instance

Anonymous | 13 Nov 2019

Impersonation Scam
Received call from from 9303 1721 this morning 13 November, claiming to be from DHL Changi with automated voice system in both English and Mandarin. It said there is an issue with my shipment and prompted me to speak to a staff. I am expecting a package hence selected option 3 and was connected to a Mandarin speaking staff. I requested to speak to an English speaking staff but was told all were busy. He said my package has been withheld in Beijing and a letter issued stating dangerous content has been found in my package. I replied no way this was possible, feeling suspicious, I said I will call DHL Singapore to verify and caller hung up immediately. I tactlessly gave my DHL tracking number and name away at the start of the call for verification - so they now have a name tagged to my mobile number to carry out more scams in the future (identity theft possibly).

Caller's background noise sounded like a call center with many staff busy on the line, however, it could be pre-recorded.