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If your girlfriend has received a decision she is not satisfied with, she can submit a written appeal no later than 3 weeks from the day she received the decision. In her appeal, she must write down which decision she is not satisfied with, and why and how she wants it to be changed. She can also submit documents that she did not submit earlier. Her appeal should be submitted to the Swedish embassy that made the decision. If more than 3 weeks have passed, the appeal will be rejected, in that case she will have to submit a new application.