You must reclaim your car - even if you can't retrieve it yet. In other words give notice that you are the owner and intend to get it out of the pound. If you don't do this within seven days of it being seized you will probably lose it.
You should have received a form number 3708, either from the officer who confiscated the car, or by post, and this would tell you where you need to go to claim it. This may be a police station or the compound that it is stored in. There is a lot more information on our page about how to get your car back.