Mo. Rev. Stat. § 407.1249
Assuming a purchaser returns to the travel club all materials of value delivered to the purchaser at closing, all purchasers of travel club memberships from a travel club that is registered shall have the nonwaivable right for a period of three business days after the date of their purchase to rescind and cancel their travel club purchase and receive a full refund of all sums otherwise paid to the travel club within fifteen business days of such rescission, minus the actual and reasonable cost of processing the refund, including credit card fees if applicable. Use of travel club benefits during such rescission period shall not waive the right afforded by this section. Individuals who purchase travel club memberships from a travel club that is not registered under sections 407.1240 to 407.1252 shall have a nonwaivable right for a period of three years from the date of purchase to rescind and cancel their travel club membership and shall receive a full refund within fifteen business days of such rescission.
§ 407.1249, RSMo