A retail installment account may be established by the seller upon the request of a buyer or prospective buyer. The statement that "service charges not in excess of those permitted by law will be charged on the outstanding balances from month to month" shall be printed in type no smaller than 8 point in every application form used by the seller and shall be stated to the applicant when such installment accounts are negotiated by telephone.
6 Del. C. § 4334