customers can obtain the electronic certificate (with seal) through the wechat applet and print it by themselves as required: longka credit card wechat applet: longka credit card applet-click "issue certificate"-"credit card account settlement certificate"-allow to open the "China Construction Bank Pocket Branch" applet-follow the prompts.
note: if paper proof is needed, it can be handled through STM smart teller machine with printing function at the nearest outlet. (In case of business changes, please refer to the actual situation. )