They sent a text referring to some mysterious accident and that some money was due, and that the addressee needs to send a text "CONFIRM" to their number. No details on the accident or who they represent. I doubt they even know whom they are texting. So just ignored the message. The same will apply to any future similar texts.

they send me a message that their records indicate I'mentitled to £3750 for the accident I had
They have also sent the message from 776-362-7901