You'll need to explain your issue more clearly and in more detail if you want assistance from the Community Forum.
What exactly do you mean by "credit" here?
Monthly membership plan, cash credit, add-ons?
What happens when you try to make a call?
Any error messages?
Can you receive calls, send/receive texts, use mobile data?
When was everything working ok last?
If you need to contact 48 support about this then see the links in my signature below.
