Merchants are able to limit the delivery options for specific payment methods.
For example, customers cannot check out with bank transfer if they choose "International Shipping".
Go to “Delivery Options” to set up all of your delivery options
“Payment Options” > Set up “Payment Type”, “Payment fee”, “Name of Payment Method” and “Payment Instructions”
“Excluded Delivery Options” > Tick the delivery option(s) you want to exclude when customers choose this payment method > Click “Update” to save
That way, when a customer chooses the excluded delivery option, they are not able to choose that payment method.
Take an example: If "International Shipping" is chosen as delivery option, customers are not able pay by bank transfer