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

Martin Lewis says you can slash your mobile phone bills before April price hikes - and it all starts with a text to a six-digit number.

News Martin Lewis urges anyone with a phone to text 5-digit number The money saving expert has warned 18 million phone users are current "out of contract" ...

Company-sponsored text numbers are different. There’s no area code, no digit spacing. Will the scammers figure out how to make it look like a 4-digit number?