Wells Fargo has overhauled its credit-card processing business after an internal probe found some employees falsely reported customers' sales and pushed small firms into costly contracts they didn't understand, the Wall Street Journal reports. The bank has fired at least two dozen employees of Wells Fargo Merchant Services LLC in the last two years for those and other bank-policy violations, according to current managers. Wells Fargo also restructured the unit last fall to reduce the incentives for using aggressive sales tactics, the executives said.