O2 is one of the leading telecom brands in the U.K., providing mobile SIM card and broadband services. As a customer, it allows you to customize your monthly plan according to your needs. If you have ...

Following a tariff overhaul by T-Mobile last month, O2 is the latest network to revamp its monthly contracts. The original home of the iPhone is launching a new SIM-only tariff and updating its ...

A lot of phone networks are offering deals on their SIM-only contracts at the moment, and O2 has joined the long list with an impressive pay-as-you-go SIM-only sale that's on right now. These are some ...

I want to buy a new music phone but it's a T-Mobile pay-as-you-go handset and I'm currently on an O2 contract. I still have a few months left on the contract but I really want to change my phone. Is ...

Most mobile phones rely on a small card called a SIM (subscriber identity module) to make phone calls and send text messages. Without it, your phone isn't able to connect with the cellular network and ...