You should have gotten digital finger print on the FBI card to avoid this uncertainty. You can send a backup, but if you are re-sending INK prints you will be in the same situation. You wouldn't know until it is processed.
As I am typing this another thought came to mind. There is another unethical way to handle this. I know few US banks will allow creating temporary/virtual numbers for online transactions that you can disable anytime. If the first prints go through, you can always disable the second credit card virtual number and your credit card will be declined. However, you will be gaming the system to get undue advantage.