I wrote a letter to k2 about gold reimbursment and this is what they worte.
Hail MotherF, Thank you for contacting Knight Online Customer Support. Server stability and security is a paramount concern for Knight Online. To retain the serverís integrity, there are times when servers will be unavailable for emergency maintenance. As such we are currently not offering refunds or credit for this time lost. Please visit our website at www.knightonlineworld.com for any announcements regarding this issue. We apologize for any inconvenience this may have caused. For any other questions regarding your Knight Online account, please submit another support request. Regards, Knight Online Support Team