As U Go
Pay as you go (a prepaid mobile phone) is a mobile phone service without ongoing billing. By purchasing credit on the mobile phone the customer is able to use the phone. Most recently there have been on going pay as you go deals which has allowed customers to gain more minutes or texts by topping up on particular days or weeks.
Customers can also stay informed about how much credit they have by calling the network provider, but once the phone has run out of credit it cant be used to call or text until it is next topped up.
There is various mobile phone networks that provide pay as you go, the most popular are, Orange Pay as you go, O2 Pay as you go and Vodafone Pay as you go services