Every contract for dating referral services at a planned dating referral enterprise or an enterprise under construction shall further provide that, in the event that the facilities and services contracted for are not available within 6 months from the date the contract is entered into, or within 3 months of a date specified in the contract, whichever is earlier, the contract may be cancelled at the option of the customer, and all payments refunded within 30 days of receipt by the enterprise of the cancellation notice.