I purchased a car in full, the only thing left that was suppose to be paid was the fees, such as doc and prep fees and sales tax, this agreement was v

The fees totaled $624.93 and as stated the dealer wrote, it was due on the bill of sale but did not indicate when it was due, due to it being a "verbal agreement". I advised dealer that I had 5500.00 to spent on his lot, and we agreed on that price. The settlement price was 5495.00 for the car, with a sales tax of 6.5% which included the doc and prep fees, all totaling for 6004.93. I never received my title and now the dealer has put a lien on my car and has repossessed it. I never received any documentation or notification about the lien or repossession. I recently found out that the car is now available for sale.