Extra charges

[Ct94]

Hi
I’ve been told there’s a way to turn off extra charges. Can someone help?

[jonsie · Accepted solution]

Speak to customer service and ask them to turn off charge to mobile and to put a zero spend cap on your account

Guide: Coronavirus Community Help and Support 

You need to call customer service
Advice from an O2 Guru to get through:
If you call 202, when it comes to the reason you are calling stay silent for 15 seconds and you will be taken to the keypad options.
Press 2 for Everything Else
Press 5 for More Options
Press 7 for Anything Else which will put you though to someone.
Choose the fraud option if necessary

Also check here

Guide: Tips to avoid unexpected charges on your bill 

Guide: Accidental MMS Sending and How to Avoid it 

[Ct94]

Can this not be done online some how?

[MI5]

No, sorry