While you don't need one, keep in mind that it's first come-first served without an appointment. You may be waiting up to an hour on their busiest days.
You can call and make an appointment, during the week it isn't as important to have an appointment. However on the weekend make sure you have an appointment.
You do not need. Just go in store and they will take care about your problem.
Thanks! Your answer is awaiting moderation.