Is the limit shared by ICBC credit card?

admin

Several years ago, I applied for two cards from ICBC, with a limit of 10k. Last year, I also applied for two more, and the credit limit was automatically increased to 20k in June. In July, I applied for another two, one of which the bank sent me a message saying they could increase the credit limit to 30k. I replied to the message and got a reply a few days later, and the credit limit was then adjusted. Now, six cards have been issued. Three of them have limits of 20k, two have limits of 10k, and today I tried adjusting the credit limits of the lower credit limit cards through the mobile app. It shows that it can be adjusted to 30k, but all applications were rejected.