Promotional value expires 180 days after purchase. Amount paid never expires. Appointment required, same day appointments accepted. Merchant's standard cancellation policy applies (any fees not to exceed voucher price). Limit 1 per person, may buy 2 additional as gifts. If diagnostic service determines a different solution needed, voucher value may be applied to necessary additional services rendered. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.