Crown Crest Capital complaint: Second Lien on Home

My husband rented an air conditioner in 2010 from a Simply Comfort salesman that showed up at our door, unbeknownst to me. Fast forward 7 years when we went to refinance our home for renovations, we found a lien against the title of our home for the ac unit. We had no idea that this HVAC company did this. Needless to say, we had been paying approximately $56month over 7 years for a total of $4,704.00. To get the lien off of our home we were required to pay $10,426 to buy out the ac unit. That was a grand total of $15,130.00 for an ac unit that would, otherwise, cost around the $5000 range. Fast forward to TODAY…we have just found out that Crown Crest Financial Corp. (Simply Comfort) has put yet ANOTHER lien on the title for $7000 for the SAME ac. When we called to inquire about this lien there is no record of us even being customers. I have been calling all day, and get the complete run around saying that they can’t help because there is no account related to my address. I have been directed to FIVE different contact numbers to no avail. The sale of our home is supposed to happen in 4 days and I have no idea if this will now happen because of this company.