The portal automatically schedules a retry on the next hourly run whenever someone updates their payment method
If necessary and you need to do an immediate retry, there is always the option to retry the withdrawal manually.
Go to contracts and search for your customer
Under bills click on the payment you want to retry
Scroll down to the bottom of the page where you will find your purple retry button. Push "retry" and then go back and refresh the page. If successful you will se the status on the payment turn green as "paid" right away. If there is no change go into the payment again and check payment history for the failure reason (example below)
