If you exceed your credit limit, we have the right to suspend or cancel your account.
如果你超过了信贷限额，我们有权暂停或取消你的账户。
《柯林斯英汉双解大词典》
2
It is true that when there are start-up costs, such as credit checks, involved in serving a new customer, the costs exceed those of serving a repeat customer.
的确，当服务新客户需要启动成本时，比如信用检查，其成本要高于服务老客户的成本。
3
If you exceed your credit card limit you would have to pay the over limit fee.