Subaru of Bend

Bought a new Subaru in 2016. The dealership had no trouble taking my money. I paid off the vehicle two years later including canceling my extended warranty. I was owed a refund of nearly $1000 and two months later still don’t have it. Was told by dealership that the money was sent to bank to pay off the loan. This was not the case. The loan company confirms as well as my own online account access that they never received the check. I am now acting as the go-between trying to figure out who has my money....Subaru Added Security or ??? Not getting much urgency from dealership to assist.