no credit

[tron]

Should I give up on this number when the membership runs out since I can't buy add ons or new membership?

[dalyer]

Did you see my post/suggestions here 

http://community.48months.ie/t5/Need-Help/cannot-buy-net-add-on/m-p/33565

Did you contact 48 support?

In the meantime while you cannot topup/buy stuff by card you could topup by voucher and then buy stuff from your credit balance by text or online:

How do I top up? Overview of the top-up payment op...

How do I buy stuff by text?

Hope this helps.