Promotional value expires 120 days after purchase. Amount paid never expires. Appointment required, contact by phone at (301) 951-0630. Merchant's standard cancellation policy applies (any fees not to exceed Groupon price). Limit 3 per person. Valid only for option purchased. All goods or services must be used by the same person. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services. Learn about Strike-Through Pricing and Savings