This fake message is designed to overcome your natural suspicion by using a name you may be familiar with and that the person needs help.
If you don’t know a Sarah then you’ll probably guess it’s either a fake or intended for someone else.
But if you have a daughter or sister or wife or friend named Sarah then you might fall for this and text back.
If you do, the text will cost you a lot (premium number) plus the return message will go about what happened and how she desperately needs money for hospital bills or some such thing. It probably will also have some story about why she’s not on her normal phone number – broken phone, lost phone, confiscated phone etc.
If the scammers have been watching your social media then they know your child or siblings name and that they are away on holiday somewhere and can use that to make the texts realistic.
Think before you respond.