I had a purchase 500 NG purchase through the normal Pro biller blocked for some reason after buying 500 for my alt account.

After a few tries it sent me to an alternate biller which charged about 70 cents more in AUD.

I have had to block my credit card as I had an unauthorised purchase last month of $1,280 AUD which my bank refunded me. I only use that credit card on NG, Paypal and Steam so not sure how the details got stolen.