No retail seller, sales finance company or holder shall make any loan of money or advance of credit to a retail buyer on or in connection with any retail installment contract or retail charge account and charge, contract for or receive thereon a greater rate of interest than he would otherwise be permitted by law to charge except in accordance with the provisions of this act; provided, however, that nothing contained in this section shall prohibit a banking institution from making any loan which it otherwise is permitted by law to make.
N.J.S. § 17:16C-40