For any business that utilizes credit card authorization forms, you can bypass the need for your customers to authorize their credit card information by acknowledging that you have express written permission from the customer to charge their credit cards.
1. Click on "Customers" on the left panel
2. Click on a customer
3. Click on Details
4. Click on Add Card
5. Select Yes to acknowledge you have written permission
6. Enter in the credit card information
7. Check the box to opt-in to the legal conditions
8. Click on Add Card
9. Once the card is successfully added, you can now start charging that credit card
