Hi, I had a car accident at the beginning of the year while driving a mates car. The car insurance company of the other car contacted me by mail with a requested amount. I rang to confirm that the amount was correct and then paid it, then about 4 months later I received a letter from dept collectors stating I owed money. When I rang they wouldn't give me details and told me I had to write a letter requesting information on the claim, after doing so received a letter back stating that even though case had been finalised and closed they now say there was an error and the original claim amount was a misprint even though I rang to confirm it. Just so you have an idea the original claim was for $600 they now want $7561. Am I liable to pay the new amount or does the original stand as it was said to be finalised and closed. Or is it covered by third party that comes with registering the car?