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Welcome to the forum.
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My full name is showing, how can I stop it? [hr]
It may be that you have been selected at random, it could be that something has shown up electronically or someone may have reported you to the DWP.
If you would struggle to get to the appointment you can ask for it to be held in your home.
You are entitled to have someone with you and I would recommend that you do, if only for moral support.
Most of these interviews go no further as the claimant has done nothing wrong so I would not get ahead of yourself by worrying about your car being taken away.
Gordon