"Urgent Request for Filler Credits to Avoid Service Disruption Before Monthly Renewal

I am out of credits until the 21st (nearly 10 days from now) I am on the business $299 plan, how can I buy filler credits until the 21st when my 10k monthly photos renews? Please this is impacting me, Id love to continue using it, I have thought about creating a new account, but then my already cloned models will not be accessible and I will have to retrain them all. Please let me just buy credits until my month resets. Thanks