Your sent your application too early(in Feb). I do not think you can correct it but you can apply to 延期 again. it is not good for them to apply for visa in future if they 延期 many times.
回复:父母B2只延两个月??USCIS失误?
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谢谢答复,我是四月初在网上申请的,后让补充材料!
-zhang1988-
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06/18/2005 postreply
05:39:03