Can a my car still get repossessed even though I have made payments on it?

Question Details:

I owe $1800 on my car. A repo man said that he was going to repo my car. I had to defer a couple of payments during my loan time. The lender told me that I would have to pay all $1800 to stop my car from being repod. My payments are $300 a month; that's what I have been paying. I was never told when I deferred the payments that at the end I would owe all the money at once. I have never been late; I only deferred. Important Notice