You'll need to post a bit more information than that if you want assistance from the Community Forum.
When were things working OK last?
Did anything change in the meantime?
E.g. phone software update, settings changes, factory reset/restore, new handset, returned from roaming abroad, etc.?
What exactly do you mean by "no phone connection"?
No connection to the 48 network - i.e. no signal bars?
If so then if you do a manual search for networks can you see and connect to the 48 network?
If you do have signal bars then is anything working - e.g. calls, texts, mobile data?
What exactly do you mean by "I topped up my balance"?
What exactly did you purchase?
Membership plan, add-on, cash credit?
What does your My48 account Dashboard say about your current membership plan status and expiry date?
What does your Transactions page say about your recent payment/purchase?
Does your Buy Plan page list any upcoming membership plan(s)?
If you need to contact 48 support about this then see the links in my signature below.
