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I got a short-stay visa in December for France and I was unable to go/put it to use. It expires at the end of June; however. I will be studying in France from the start of June to the end of July. Will I get kicked out? Will they refuse my entry. I will not need a visa for the summer because I will not be in the country for longer than 3 months. Do I need to get my old visa voided?