Promotional value expires 120 days after purchase. Amount paid never expires. Appointment required, 48 hour advance notice required. Additional charges may apply for advanced deep cleaning service visits. Must sign waiver. Consultation required; non-candidates and other refund requests will be honored before service provided. Not valid with insurance. Limit 1 per person, may buy 1 additional as gift(s). Limit 1 per visit. Valid only for option purchased. Not valid for clients active within the past 12 month(s). Merchant's standard cancellation policy applies (any fees not to exceed voucher price). Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.