What that guy said ^^^^^
and dont deal with him again. He will still try and rape you.
Keep it plain and simple if you are the only one there and you have no one to help you word your conversation.
Say, I would like my deposit back.
He says why? You say, because you forged documents to try and sell me this car.
He says so? You say I have enough documentation to go to fair trading, and a current affair (for shits and giggles)
He will want to avoid unwanted attention.
Even if it does take a year to get your deposit back. Which i hope is not a lot. You will have a better car from Iron chef and when you do get your deposit back in a year, think about the car mod bits you can buy haha