I have a customer who disputes my purpose for pulling their credit. They have had a transaction with my company as we are an auto dealership and have a previously signed credit application. The customer says that we pulled their credit without their permission. We have two vehicles tied into one contract and the customer wanted to return one of the vehicles and wanted us to refinance. We pulled their credit and the customer has filed a complaint with the Department of Consumer Affairs in our State (SC). My question is did I have a legal right to pull that customers credit again using a previous signed credit application?