Promotional value expires 180 days after purchase. Amount paid never expires. Limit 4 per person. May be repurchased every 30 days. Must sign waiver. Consultation required; non-candidates and other refund requests will be honored before service provided. Appointment required, contact by phone at (703) 678-5000 . If you make a reservation through Groupon, you may cancel or change your reservation up to 24 hours before its start time. Otherwise, vouchers booked through Groupon will be redeemed and the deal’s promotional value and amount paid will expire. Redeemed vouchers may not be refunded or rescheduled - this also applies to no-shows. Your name and email address will be shared with this merchant to facilitate your reservation. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services. Learn about Strike-Through Pricing and Savings