I agree, they are such strange people
Yes, to renew your passport, take the expired one without an appointment. They attend to you and renew it.
But if you are going to renew your passport you can come without an appointment you bring the one that you have expired and right there you both will have to wait a while but it is worth it, if you arrive before 8 better so that when you open you are of the first that you don't have an appointment but you have more chance to attend to it, or you can enter your new consulate Facebook in Elizabeth there is much more information
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