Yes it should be possible since ultimately they are the owners of the address

But it depends if they are willing to do this, it will someone un the highest position who has the means and the access required to send those coins to you,

I did a similar mistake when i deposited on the wrong chain on stake's address , they refunded me in 1 hour but they charged like 5 or 10% (i dont remember)

Maybe u can offer some retrieval fee to duelbits if they are willing to help you, this is a significant amount and i hope they do it