Which city are you in? Just find an account manager who handles credit card applications, or go to the bank counter to apply. 021-53529888 Bank of Communications Credit Card Center customer service hotline.
Generally, you only need to provide a copy of your ID card and proof of employment to apply for an ordinary credit card with a general limit. From the day you hand in the information to the time when the card is issued after approval, the fastest is 15 days (but you can wait the usual 1 month, because I know the credit card application process very well). Your information must be true.
astrom2008@sina.com