Probably not alot you can do other than than to wait for someone from staff to advise you, or go to your cart and see if it's still there for you to process again, or readd the items to the cart and try again.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi