delete
https://secure.fusebill.com/v1/paymentMethods//achCard
This function allows you to delete an ACH card payment method on a customer. There is no body returned. This delete action cannot be undone. Additionally, if you have multiple payment methods on file and attempt to delete the default payment method an error is returned. You must set another payment method as the default before deleting the current default. If you have only one payment method on file it can be deleted normally.