ArcheAge has disabled payments using HiPay due to issues encountered.
In a blog post, Community Manager Carendash outlines the reason for disabling HiPay payments,
“Due to an issue with the payment methods of HiPay, we had to temporarily disable them.
The transactions of players that got charged through the store via payment methods of HiPay including but not limited to Sofortüberweisung or Giropay and not received their items or Credits, will be processed in a timely manner.”
At this time, there is no timeline to resume HiPay payments.