Thank you for your mail.Actually I understand your view point to follow to the system, In our view point , We also believe if the system is running smooth, no problem will happen. Anyway, There were problem happened with different symptom. For the symptom related with QA, We did necessary action with QA internally according to the last meeting. For another symptom /cases. I think we should collaborate each other to resolute the problem as a whole but not limit to specific department. If this data /system related root cause , No doubt that it is data or system issue, I think should consult with MIS or Wave team to provide solution to settle the problem Therefore, We still need to understand what the case it is . to find different solution for the case. Thank you for your understanding.