on 25-11-2022 23:41
on 26-11-2022 00:09
You can change your security question in My O2 and then change your password
on 26-11-2022 00:10
Looks like you should contact customer service as they can help with that – message them on Social Media if that works best for you -on Facebook (https://o2uk.co/O2CFB) , Twitter (https://o2uk.co/O2CTW) or Instagram (https://o2uk.co/O2CIG) or call on 202 or 0344 809 0202.
on 28-11-2022 10:39