You'll need to explain your issue/problem in a bit more detail of you want help here.
Do you mean that you're roaming abroad but have no service?
At all? I.e. no calls, texts or data?
Where are you?
What membership are you on?
What make and model of phone do you have?
I am not a 48 employee - if you need to contact 48 support then please
click here - if the Chat Now option does not appear on that page then keep trying until it does.