Need to call and inform RMS, if not RMS will try to participate in post closing session to take counter trade via cash market. They can only try but end of the day all liability is with client only.
RMS tried, but their own order was rejected by their own system. Now how should that be interpreted ? Incompetence, helplessness or ill-intention. My heart trusts the broker, so i don’t believe it could be ill-intention , but i could be wrong also. Could just be a mismanagement due to being understaffed on a high volume day and lack of coordination between different departments. But should i escalate the issue to higher management or not ?
End of the day it is user problem, if RMS tried means it is not ill intention, maybe because of high volatile expiry day or something else, you can write to them to find out.