- My O2: Sign in to My O2 online or through the app to check your balance. You can also use My O2 to track your usage, check your bills, and top up your phone.
- Dial 4444: Call 4444 for free from your mobile phone and choose option 2 and 2 again.
- Text BALANCE: Text BALANCE for free to 20202.
- *Dial #10#: Key *#10# then press the call button.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.
Please select the post that helped you best and mark as the solution. This helps other members in resolving their issues faster. Thank you.
