Almost all scammers use more or less the same trick, they try to trigger a fear or greed rush with their message/call, so you don't get a chance to question authenticity of what you read or hear.

That is also what many salespersons do to get you to buy what you don't need nor even want, you cannot miss this limited time discount.

Always stop for a moment and be skeptical, caller ID can be spoofed, email addresd can have ä or ē in the domain that you won't notice if you don't look carefully.