It is very difficult to keep credit cards and limit. After all, there are too few credit cards and your spending power is not enough. If the bank gives you a high credit card limit, but your monthly spending limit is too small, then the bank will think that your existing credit card limit does not match your spending power, so it will appropriately reduce your credit card limit.

Therefore, there is no shortcut to maintain the quota. You must spend more by credit card and repay on time. The monthly consumption quota is more than 50%.