Is this your first experience with EK?
I always prefer to travel thru EK only, reason is that if I have to complain for their services my voice is immediately heard and EK customer services is Excellent in resolving the issues like these as compare to any other Airline in the Middle East (as per my experience).

If the EK staff have really misbehaved with you by saying they will 'Throw you Luggage'. This is a very serious issue.

You must complain in writing, EK will locate that staff by their duty roster.