422.415(1)(1) Except as provided in sub. (2), no creditor shall make any change in the terms of open-end credit plans that is adverse to the interests of the customer with respect to any outstanding balances or that imposes or alters a charge permitted under s. 422.202 (2m). For the purposes of this section, a change shall be presumed to be adverse if the result thereof is to increase the rate of the finance charge or the amount of the periodic payment due. Outstanding balances shall be determined on the assumption that all payments shall be credited first to any finance charges that may be due and then to the payment of debts in the order in which the entries to the account showing the debts were made.

422.415(2)(2) A change that is adverse to the interests of the customer with respect to outstanding balances or that imposes or alters a charge permitted under s. 422.202 (2m) may be made if any of the following conditions is met:

422.415(2)(a)(a) The change is required by legislation, regulations or administrative rules becoming effective after the date of the agreement with the customer and the creditor has mailed or delivered to the customer written notice disclosing such proposed change not less than 3 months prior to the effective date of such change or such lesser period of time as may be available before such change is required to be made.

422.415(2)(b)(b) The change is made within 3 months of March 1, 1973 or within 3 months after the repeal or expiration of any federal legislation, administrative order, rule, guideline or regulation, the purpose of which was to limit or freeze finance charges or other charges, in effect on March 1, 1973, whichever is later.

422.415(2)(c)(c) The creditor mails or otherwise delivers to the customer a written disclosure of the proposed change not less than 90 days prior to the effective date of such change.

422.415(2)(d)(d) The customer agrees in writing to a change other than a change made to apply a finance charge permitted by the treatment of s. 422.201 (2) by chapter 168, laws of 1979, to a balance outstanding on April 6, 1980.

422.415(3)(3) No term of a writing executed by the customer shall constitute authorization for a creditor to unilaterally make changes in the terms of the credit plan, which are otherwise prohibited by this section.

422.415(4)(4) A violation of this section is subject to s. 425.304.

422.4155(1)(1) In an open-end credit plan in which more than one person may be obligated for extensions of credit, any person may terminate his or her liability for future extensions of credit under the plan by giving written notice to the creditor of the person’s termination of liability. The person’s liability for future extensions of credit under the plan shall continue as to loans extended to, or purchases made by, any other person under the plan for 15 business days after the creditor’s receipt of the termination notice. The terminating person’s liability may not exceed the greater of the requested and contracted for credit limit under the plan or the balance outstanding under the plan on the receipt of the termination notice plus $500.

422.4155(2)(2) Notwithstanding sub. (1), a person remains liable for loans extended to, or purchases made by, the person after giving the termination notice.

422.416(1)(1) With respect to a consumer transaction no merchant shall give or offer to give a rebate or discount or otherwise pay or offer to pay value to the customer as an inducement for a consumer transaction in consideration of the customer’s giving to the creditor the names of prospective customers, or otherwise aiding the creditor in entering into a transaction with another customer or, without being limited by any of the foregoing, performing any other act or the occurrence of any other event, if the earning of the rebate, discount or other value is contingent upon the occurrence of an event subsequent to the time the customer enters into the agreement.

422.416(2)(2) A violation of this section is subject to s. 425.305.

422.417(1)(1) With respect to a consumer credit sale a seller may take a security interest only in:

422.417(1)(b)(b) Goods upon which the property sold is installed or to which it is annexed, or goods upon which the services sold are performed, if the obligation secured is $500 or more;

422.417(1)(c)(c) Real property to which the property sold is affixed, or which is maintained, repaired or improved as a result of the sale of the property or services, if the obligation secured is $1,000 or more; and

422.417(1)(d)(d) Goods of the consumer which were the subject of a prior transaction with the seller which is consolidated (s. 422.206) with the consumer credit sale, or if the consumer credit sale is made pursuant to an open-end credit plan, goods previously purchased by the consumer pursuant to the plan, subject however to s. 422.418.

422.417(2)(2) With respect to a consumer lease, except as otherwise provided in s. 429.205 with respect to a motor vehicle consumer lease, a lessor may not take a security interest in any property owned or leased by the customer other than the leased goods to secure the lessor’s obligations under the lease. This subsection does not prohibit a security interest in a cash security deposit for a consumer lease of motor vehicles.

422.417(3)(3) With respect to a consumer loan, in addition to the limitations on security interests required by 12 CFR 227.13 (d), 12 CFR 535.2 (a) (4) or 16 CFR 444.2 (a) 4, if any, a lender may not take a security interest, other than a purchase money security interest, in:

422.417(3)(a)(a) Clothing of the customer and the customer’s dependents and the following, if they are not fixtures: dining table and chairs, refrigerator, heating stove, cooking stove, radio, beds and bedding, couch and chairs, cooking utensils and kitchenware; or