Not sure what you mean by "I made a search on your database". We don't have a database of this kind.(posted 7857 days ago)Can you explain what you mean in a bit more detail - include links to the database and results page that you mean and we'll try to work out if and how we can help.
In terms of your shortfall, you need to read the Do's and Don'ts pages in the Repossession section that is linked on the left of this page as your starting point.
Good luck.