Money expert Martin Lewis says mobile phone customers can save money by sending a text to a 5-digit number.

Financial guru Martin Lewis is encouraging individuals to send a text message containing a five-digit code in order to reduce their mobile phone bills.

Martin explained: “First, text INFO, no cost, to 85075, to check if you’re out of contract. “If you’re on Three, ID or Smarty mobile, they’ll ask you for your date of birth.