cant pay multiple accounts from my Organization

Via the AWS Management Console, go to the Support Center and open an "Account & billing" support case.

If you can't login to the AWS Management Console, try this link, https://support.aws.amazon.com/#/contacts/aws-account-support/

So, the Payer account in Organization is only responsible for paying charges for the time AFTER Organization was created and accounts added as linked/member account in that Org. Any charged prior to that would be still charged to those individual accounts (it's for the time when they were still "Standalone" accounts and responsible for their own bills).

I assume that's the likely scenario in which you are in. You are saying AWS is attempting to charge expired credit card. This process is automated, so I assume that this is related to the billing periods BEFORE you created Organiation and before Payer account started being responsible for the charges. Even if you create Organization somewhere through the month, still, all the charges for that first part of the month would have to be paid by those individual accounts (for their own bill).

As suggested before, please open a support case from the account where you see the issue, and our Support team will be able to check it and suggest if there are any options (if it's possible to "transfer" those charges to another card of that new Payer account). The support team will be best suited to help you with your specific scenario.