Payment Problems

If you are paying by credit card, you may purchase access to the simulation through our website via PayPal. If you don't have a PayPal account, you will be given the option to check out as a "guest."

This checkout process will not work with an iPad or other tablet device. If you are running into problems with these devices, you'll want to switch to a compatible desktop or laptop to process your payment.

Whether you are checking out through your PayPal account, or as a guest, if PayPal is unable to process your payment, please contact Knowledge Matters toll-free at 877-965-3276. We can process the payment for you (Visa or MasterCard transactions only).

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