In connection with the offer for sale, sale, or promotion of a business opportunity, it is a violation of this Rule and an unfair or deceptive act or practice in violation of Section 5 of the Federal Trade Commission Act (“FTC Act”) for any seller to fail to furnish a prospective purchaser with the material information required by §§ 437.3(a) and 437.4(a) of this part in writing at least seven calendar days before the earlier of the time that the prospective purchaser:

(a) Signs any contract in connection with the business opportunity sale; or

(b) Makes a payment or provides other consideration to the seller, directly or indirectly through a third party.