Top up your mobile wherever you go with this £20 Three Mobile Top Up card. Make your credit last longer with 3p a minute, 2p a text, and 1p per MB of data, no matter how often you top up.
There are 2 ways to use this card to top up your phone. You can top-up over the phone, or enter the voucher number on your confirmation email.
Unconverted credit has no expiry, but you must make a call, send a text or use some data, once every 6 months to keep the account active.