After six months of use and spending in 500 yuan, you can call to increase the limit, 95588-2-2.

If you want a higher amount, it is more convenient to apply for a new one at ICBC with proof of income. That kind of card has a low quota and it is too troublesome to upgrade. It is better to reissue it, but the card is beautiful and can be collected.

PS: In supermarkets and streets, many banks have set up credit cards. As long as you have proof, those salesmen will generally try their best to help you apply for a high credit card. But carefully distinguish and determine whether it is a bank employee!