N.Y. Comp. Codes R. & Regs. tit. 13, § 600.4
(c) Conditioning the Sale of Essential Products on Agreement to Excessively Burdensome Payment Terms. A seller uses unfair leverage or unconscionable means if, during an abnormal disruption of the market, the seller conditions the sale of the essential product on a consumer’s agreement to excessively burdensome payment terms, including but not limited to a liquidated damages provision that is unenforceable as a penalty, the payment of usurious interest, or, if the essential product is to be paid for via loan or through a retail installment contract, providing as security for the loan assets whose value grossly exceeds the pre-disruption price of the essential product.
(3) a seller may rebut the presumption established in this subdivision (d) with evidence that, as provided in 13 NYCRR § 600.9, the demanded increase in the amount charged:
(ii) is necessary to recover additional costs not within the control of the seller that were imposed on the seller for the goods or services.
(e) High Pressure Sales Tactics.
A seller uses unfair leverage or unconscionable means if, during an abnormal disruption of the market, a seller sells an essential product to a consumer using high-pressure sales tactics, including but not limited to:
(3) any act which would cause the resulting contract of sale to be void on the grounds of undue influence.
(f) Unfair Leverage of Market Position.
A seller uses unfair leverage or unconscionable means if, during an abnormal disruption of the market, the seller engages in unfair leverage of market position, as provided by 13 NYCRR § 600.5.
(d) Refusal to Honor Contracted-For Prices.
A seller is presumed to use unfair leverage or unconscionable means if the scrutinized sale is to be made pursuant to a contract agreed with the buyer prior to the onset of the abnormal disruption of the market, the buyer is a consumer, and the seller threatens to withhold, or withholds, performance lawfully due under the contract unless the buyer consents to pay more than the existing contract provides the buyer must pay. For purposes of this subdivision (d):
(a) In General.
A seller charges an unconscionably excessive price in a sale, pursuant to General Business Law § 396-r(3)(a), if, in the course of a scrutinized sale, the seller exercises either unfair leverage, unconscionable means, or both (whether or not accompanied by an amount of excess in price that is unconscionably extreme). The exercise of unfair leverage or unconscionable means includes, but is not limited to, the conduct described in subdivisions (b) through (f) of this rule.
(b) Deceptive Pricing.
A seller uses unfair leverage or unconscionable means if the seller engages in deceptive acts or practices that serve to misrepresent or obscure the total price of the essential product.