There are large number of network providers in UK. One of the most widely used network is Virgin Mobile serving to a large chunk of mobile phone users in UK. According to Virgin Mobile, their user number is increasing year after year. Compared to the earlier year, its number of customers has increased from 3.88 million to 4.35 million and it has gained 193,000 active users.Being the UK's fifth-largest mobile operator and having more than five million customers, in the previous quarter, the average revenues rose to