The full name of UK is Ukey, which is also commonly referred to as tax-carrying treasure. Its main function is to facilitate taxpayers to declare their taxes, plug in UK on any computer with Internet access and install drivers to declare their taxes. If you forget to clear your card, you can call the bank to report the loss and cancel it. Usually, there is a phone number on the bank card. When the bank handles the card on the mobile phone, it checks some personal information such as the date of birth and address, and then handles the required business after confirming that it is not the person. Usually, if you forget your password, the bank will send you a letter telling you the new password.