The message usually says a child has lost or broken their phone, is texting from a new number, needs money urgently and can't talk.
Every part is designed to stop you checking: urgency, emotion and 'don't call'.
The fix is simple: call the old number, or ask in person.
Teens get versions too, from 'friends' asking for gift card codes.
The rule from the episode: new number? Call the old one.
The rule: New number? Call the old one.
Phishmael & Friends