Original sentence: Another issue concerned each bank's credit card division
Edited sentence: Another problem concerned each bank's credit card division.In comparison to the CoreStates purchase, the merger of First Union and Wachovia has been a success.In fact, every year since the merger, Wachovia has been ranked number one in customer satisfaction among major banks by the University of Michigan's annual American Customer Satisfaction Index.The company's deliberate pace of conversion seems to have prevented any large-scale customer attrition