How do I add a payment method to my TripActions account?

If you are a business traveler using TripActions to book your travel, you may need to add a payment method to your account in order to pay for your trips. This could be a corporate credit card, a personal credit card, or a payment method such as PayPal. Knowing how to add a payment method to your TripActions account is important so that you can ensure your trips are paid for in a timely manner.