Checking your balance on O2 Pay As You Go (PAYG) is essential for managing your phone usage and avoiding unexpected charges. You can check your balance in several ways, depending on your preference and the type of phone you have.
One of the simplest ways to check your balance is by dialing *#100# on your phone. This will bring up a menu with various options, including your current balance. You can also check your balance by logging into your My O2 account online or using the My O2 app. If you have a smartphone, you can also use the O2 app to check your balance quickly and easily.