I have been trying to work with Honda of Serramont...

I have been trying to work with Honda of Serramonte just so I would not have to leave a negative review. To be clear my car buying experience with them was good. I was in and out in almost 2hours and their sales people are true professionals. My awful and truly exasperating experience, which has marred the prior experience has to do with my trade-in vehicle. I walked in and handed my lien release to the front desk staff member. Instead now more than 3 weeks later I am being told the Finance dept does not have the document & could I get another copy? Also I have yet to receive a check for my trade-in when the delay is due to their personnel. I have had my new car for 6weeks now and they have had my old car for just as long yet I have yet to receive the check for it. Truly unbelievable.. the lack of customer service, responsibility or ownership of faults from this place.