I keep getting text messages from a number & it looks like there £4-50 a message

[Messges]

How can I get to speak to o2 to prevent these messages being sent

[Messges]

Can someone get me a call back please

[MI5]

@Messges 

See community help here:
https://community.o2.co.uk/t5/How-to-Guides/Have-you-fallen-for-or-been-conned-into-a-premium-rate-s...
And O2 advice here…
https://www.o2.co.uk/help/account-and-billing/premium-service-checker
and this site will to help you get your money back…
https://payforitsucks.co.uk/
You should also ring Customer Service and ask them to place the following bars on your account:
Bar all Direct to bill debits
Bar Premium rate numbers

Guide: Tips to avoid unexpected charges on your bill 

[MI5]

@Messges 

You need to contact O2.
All numbers are in this guide Guide: Coronavirus Community Help and Support 
Or 202 from your O2 mobile.
Advice from an O2 Guru to get through:
When you call 202, you will be asked for 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.
You can also try saying "Upgrade" or "Fraud" to be connected to an advisor.