The 4 digit on “feature” does knock the security down quite a lot. However, all keys not in the access code are connected to the same point so you could increase your security by using a pad ...

Mr Lewis outlined how to verify: "The first thing to do is text INFO, for free, to 85075. If you're on Three, iD Mobile or Smarty, customers will need to confirm their date of birth in a reply.

12:19, Thu, Jun 26, 2025 Updated: 12:20, Thu, Jun 26, 2025 Money expert Martin Lewis is urging people to text a five-digit code to slash their mobile phone bills. The founder of Money Saving ...