When users are having trouble submitting payment, ask for a System Check before proceeding.

If they are using a desktop or laptop, have them clear their Cache as a troubleshooting step.

If they are using a mobile phone or tablet, this will cause issues with the payment application, and they will need to switch to a desktop or laptop computer.

I apologize for the difficulty you're experiencing in checking out. May I please ask if you are using a phone or tablet to complete the transaction? If so, kindly note that the Administrators have advised that the payment application is not compatible with mobile devices, and you will need to use a computer to submit your payment.

Any charges you may see on your credit card from submissions while using a mobile device are authorization holds, and they will drop off. Please access your account on a computer and locate the courses in your shopping cart to complete payment and registration.