Don’t have money to pay balance

TLDR: Will Amazon wait until next settlement date to attempt a charge to pay a negative balance AFTER it failed today? If not, will I lose access to account leaving me unable to ship open orders?

Ran into some tough times and the timing around an ad invoice has made it so that we had an $800 shortfall on settlement date. We were expecting a $300 shortfall and our debit card had the balance to pay it. Because Amazon tried to charge $800 it was denied. Apparently, they then try a $0 charge which my bank denied due to fraud protection. When that happened, Amazon restricted my account. I got that corrected and have access to my account again.
Now, the account shows -$800 total balance. When I go to Payments, it shows that $800 will be charged to my account on next settlement date, 11/5. While that would be great, I’m pretty sure I remember this happening awhile back and they did actually attempt that charge again a few days later, not waiting until that settlement date.
I’ve turned off my ads and gone into vacation mode because I worry about getting locked out of my account with any open orders. Ideally, I’d rather continue to sell as that would help pay balance down.

Any ideas on the best course of action? Will they attempt to charge that $800 before the settlement date? What happens if they try the charge again in a couple of days and it gets denied? One of my biggest concerns is how do I fill open orders if I can’t access my account?

I don’t have any other card available. And I know, I need to be more responsible. I thought we had it covered and then our advertising spend jumped past it’s payment threshold an hour before settlement.

Thanks.