Okla. Stat. tit. 14A, § 14A-2-416: Change in terms of revolving charge accounts

(1) If a seller makes a change in the terms of a revolving

charge account without complying with this section any additional

cost or charge to the buyer resulting from the change is an excess

charge and subject to the remedies available to debtors (Section 5-

202) and to the Administrator (Section 6-113).

(2) A seller may change the terms of a revolving charge account

whether or not the change is authorized by prior agreement. Except

as provided in subsection (3), the seller shall give to the buyer

written notice of any change at least three times, with the first

notice at least six (6) months before the effective date of the

change.

(3) The notice specified in subsection (2) is not required if:

(a) the buyer after receiving notice of the change agrees

in writing to the change;

(b) the buyer elects to pay an amount designated on a

billing statement (subsection (2) of Section 2-310) as

including a new charge for a benefit offered to the

buyer when the benefit and charge constitute the

change in terms and when the billing statement also

states the amount payable if the new charge is

excluded;

(c) the change involves no significant cost to the buyer;

(d) the buyer has previously consented in writing to the

kind of change made and notice of the change is given

to the buyer at least fifteen (15) days prior to the

effective date of the change;

(e) the change applies only to purchases made or

obligations incurred after a date specified in a

notice of the change given at least fifteen (15) days

prior to the effective date of the change; or

(f) the change involves late payment charges or over-the-

limit charges.

(4) The notice provided for in this section is given to the

buyer when mailed to the buyer at the address used by the seller for

sending periodic billing statements.