Paid two times for what?
What does your Transactions page say about your recent payments?
Do you have an active membership plan listed on your My48 account dashboard in order to be able to use outgoing services?
When was everything including mobile data working ok last?
What changed in the meantime?
Are calls and texts working ok?
If not then what happens when you try to make a call or send a text?
Are your APN settings configured correctly in order for mobile data to work properly?
If you need to contact 48 support about this then see the links in my signature below.
