This study aims to identify and measure the factors affecting the quality of card services on the satisfaction of individual customers at Vietcombank, Dong Thap. Dong Thap Province. Data were collected from 195 consumers who have been and are currently using card services at Vietcombank branch in Dong Thap. The study employs descriptive statistics to summarize the data, assesses the reliability of the measurement scales using Cronbach's Alpha, Eploratory factor analysis (EFA) was also used to identify the underlying structure of the measurement scales, followed by correlation testing and multiple linear regression analysis to validate the model and hypotheses. The results revealed that three factors significantly influence customer satisfaction with credit card services: security and privacy, tangibles, and service fees. This study proposes the following measures: intensifying the digitalization of documentation and transaction processes; enhancing marketing communications via Internet Banking to reduce customer acquisition costs; strengthening the security of card services; and upgrading ATM facilities and branch transaction counters to better meet the needs of residents in Cao Lanh Ward—thereby improving overall service quality at Vietcombank’s Dong Thap branches in the future.