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[salmamohammed01]

Any way i can access my o2 if i have no access to my sim card? they keep requesting my a code to my phone number and im wondering if i can change that to my email

[jonsie]

We’re just customers like you but it sounds like you’ll need someone to access your account which can’t be done from here. If you message O2 using the links below, they should be able to help you with this
or give them a call on 202  or 0344 809 0202

[Oxonian]

Why do you not have access to your SIM @salmamohammed01 ? 

This might be relevant :-

Guide: Lost or Stolen O2 Device? - How to Report it