Yeah, so I've been trying to buy CSC using my mobile phone, but it just keeps saying there's an error. It usually works just fine, but all of a sudden it's not and it's frustrating me because I want to have CSC when next month's items come out in the Cash Shop. T^T
You'll have to contact the support team of whatever company you're going through for the purchase (PayByCash, etc.) They process the transactions.
: I tried, but it just keeps failing to reach the right page. :/ No CSC for Ari. T^T