on 03-08-2023 09:54
It same issue as many posts today there was an unexpected order number that adds Overage Allowance Charges for Call, SMS, MMS, International Text, Voicemail.
Have not requested this change
Cant contact by online chat of telephone...
on 03-08-2023 10:02
It's a system error. Nothing to worry about.
on 04-08-2023 13:44
For those that received the message regarding the overage allowance charges, O2 have let us know that this is a legitimate message issued as a billing correction. The details can be viewed in My O2 as well.
Others may have gotten a notification about a new order placement--that one is an error and O2 are investigating why it happened.