they don't owe you anything, it's up to them to release the mistakenly sent funds or not. Probably they have some straight rules regarding these situation (which is not too bad).
Imagine how overloaded the support on all exchanges right now...
That's a harsh line to draw in this situation. 2k is not 200 to not give a sh*t. I'll understand if it's impossible to retrieve but as long as their a chance they should help it might take time. I suggest u should not give up on your efforts to recover your funds and try and be nice in your response to support team cos a lot is riding on it, they are humans you know. If you become a wise ass or arrogant then you are screwed. So be nice and try again cos "a snail pass through thorns by a nice tongue".