If the purchase is approved, the purchase amount is subtracted from the cardholder's available credit limit.

如果购买被批准后，该购货金额减去持卡人的可用的信用额度。

youdao

Its easy to check your available credit limit or apply for a secured overdraft facility. Just visit any of our branches or call 2277 3399. Central branch.

如需查询可用透支额或申请资产备用透支，您只需亲临任何一间美国运通银行分行，或致电2277 3399，简易方便。

youdao

Smith then purportedly called the customer service numbers at the retail stores to confirm that the victims had credit accounts and to determine the available credit limit.

FORBES: Home Depot, Sears, Kmart, and Kohl's Hit By Identity Theft Ring

Or when your available credit is less than a predetermined percentage of your total credit limit.

FORBES: Free Online Alerts Can Help Credit Card Customers