Promotional value expires 90 days after purchase. Amount paid never expires. Registration required: email prosper@spengantx.com . Must use five classes within 30 days of the first class. Valid only at the location listed. Valid for new clients only or those who haven't been to SPENGA Prosper in the last six months. Limit 1 per person. 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. Offer is not eligible for our promo codes or other discounts. Learn about Strike-Through Pricing and Savings