The Krack vulnerability is potentially affecting every Wi-Fi device. Learn more about it and use this protection guide to secure your data. The Krack vulnerability is potentially affecting every Wi-Fi device.
In addition to the per transaction fee charged to you by the credit card processing company, you may also be assessed a minimum monthly fee. If you do not do a certain level of credit card business per month, the company will charge a minimum fee, usually around $25-$50 per month.
That means you'll have a balance of $300 and $700 available credit on a credit card with a limit of $1,000. If you try to spend more than your available credit, your transaction will be declined, unless you've opted-in to have over-the-limit transactions processed.