In order to ensure the safety of customers' funds, banks have taken measures to limit the number of overseas credit cards. This is because overseas credit card swiping is risky, and customers are vulnerable to fraud and theft when they are in consumption abroad. In addition, the bank's restrictions on the number of overseas credit cards also help to prevent customers' funds from being illegally transferred or misappropriated.
Therefore, the bank has taken this measure to ensure the safety of customers' funds.