Martin Lewis has appeared on ITV's This Morning to warn everyone with a mobile phone not to be duped by a new Royal Mail text scam sweeping across the UK. The founder of MoneySavingExpert.com explained to presenters Eamonn Holmes and Ruth Langsford how a text purportedly from Royal Mail is actually from clever crooks trying to scam everyone who receives the message about a small charge for a delivery due to be delivered.