I purchased a car from an individual last January. I made a down payment and have made 13 payments. I believe I have paid the car in full, but haven't heard from the other party in over a month. I do not have the title, they kept it. The tag on the car is theirs too. I do have a notarized contract stating I am purchasing and I have all receipts of payments. I tried to get a title but I found out the car has a lein holder and is up for repossession. I have paid someone for this car but they haven't been paying their debtor. What can I do.