The seller on a revolving charge account accessed by a seller credit card or similar arrangement may contract for and collect from the buyer an over-the-limit charge of Ten Dollars ($10.00) for each time the buyer exceeds the designated credit limit on the amount. This charge shall be in addition to all other credit service charges, fees or additional charges which the seller may charge and collect from the buyer under the Uniform Consumer Credit Code, Section 1-101 et seq. of this title.
Okla. Stat. tit. 14A, § 2-202.2