Order Won’t Go Through - Payment Transaction Unsuccessful

I was selected to order my lightning back in June (and can now during this wave since I didn’t then). When I click “continue to payment” after configuring my truck, an error message pops up that says “Your payment transaction was unsuccessful. Please try again.”

I have called Ford and they told me it is a known problem but to keep trying because some people have been able to get through that had the issue. I’ve tried everything I can possibly imagine without success. I doubt ford fixes the issue before the window to order closes on the 22nd. Has anyone experienced this issue and found a way to order?!?