Having issue getting back deposit for a probate auction.

[Qili Wang]

I recently attended a probate sale and it required 10% offer price of deposit to be elligible to attend the bid. I didn't win. The issue is it has been 11 days and I still did not get my deposit back. My agent said the listing agent is not very responsive. I am not sure what to do now. Has anyone experienced same issue? I am a bit worried since I am in contract for another property now and the deposit is important to get the deal closed.