Customers who want to upgrade their mobile phone can now find out the instant value of trading in their old one at fonebank.com.
The company said that some old phones could be worth as much as £200 when taking out a new contract, but that many people did not realise their value.
Customers are increasingly looking for the best deal when upgrading their mobile phone contract. It's easy to forget the value of your old phone and many end up in drawers gathering dust.
It's easy to find out the value of old mobile phones and even an unexciting model could net you £30.
There are 2m people in Britain missing out on phone upgrades that are due, with £10m of potential cash going unclaimed. This money could make a noticeable difference to the bank balance amid the current financial climate.