1. If it is not less than 3 months after the account is opened and the accumulated consumption is above 500 yuan (inclusive), the credit line can be adjusted to 500 yuan;

2. The credit line can be adjusted to 1000 yuan after reaching the level of credit line in 500 yuan and accumulated consumption of 500 yuan (inclusive) for at least 3 months;

3. After reaching the credit line level of 1 1,000 yuan, the credit line can be adjusted to 2,000 yuan in at least 3 months after accumulative consumption of 500 yuan. (the upper limit is 2000 yuan). I hope my answer is helpful to you.