Phone stolen, block SIM

[Roberto1003]

I need to report a phone stolen and disactivate it. Can't find any help on O2 site except to phone them. Which I can't do.

[Bambino]

See this: Lost or Stolen O2 Device

You can also reach O2 via social media:
Facebook (https://o2uk.co/O2CFB), Twitter (now X) (https://o2uk.co/O2CTW), or Instagram (https://o2uk.co/O2CIG)