The American delegation has improved its qualifications, but it can't increase the amount.

The reasons for platform qualification rather than amount are as follows:

1. Credit card bill is overdue: if it is not repaid on time before applying for withdrawal, it will affect the credit score and lead to withdrawal failure.

2. Bad personal credit information: Too many personal credit information inquiries, or overdue or cashing, the US Mission failed to apply for credit card withdrawal.

3. The personal debt ratio is too high: if the personal debt ratio is too high, the bank will think that the repayment ability is insufficient, which will lead to the failure of withdrawal.