Your post was blank @moa0709 and there isn't much to go on in the subject line.
If you want assistance from the Community Forum then you need to explain/describe your issue clearly and in detail.
What exactly are you trying to buy?
Cash credit, membership plan, add-ons?
What happens?
Any error messages?
When were you last able to successfully buy stuff on 48?
Is your payment card still valid, not frozen via your online banking, and there are sufficient funds in the account if it's a debit card?
If you need to contact 48 support about this then see the links in my signature below.
