AWHR Awful Customer Service - When I was selling my house I called to get the buyout information and it has taken 3 days so far and no response. buffalo grove Illinois

This has always been a bad comapny to deal with.  I leased a conversion burner for 16 years.  As I am getting ready to sell my house I called for a buyout number so I can transfer the appliance free and clear to the new owners.  I have been waiting 3 days for this one number.  Today I have called every hour to get this amount from them.  They keep saying they have no control over the 3rd party that has to give them the final amount.  

I asked when I might have the buyout number.  Noone can give me an answer.  They claim that it is not their fault.  I say that I contracted with AWHR and while they can delegate the authority to a 3rd party, they can't delegate the RESPONSIBILITY that they have to me.  They should be able to get the simple amount back to me in a timely fashion.  Three business days is unreasonable.