Force Billing Address

function pw_edd_force_billing_address() {

	if( ! did_action( 'edd_after_cc_fields', 'edd_default_cc_address_fields' ) ) {

		edd_default_cc_address_fields();

	}

}

add_action( 'edd_purchase_form_after_cc_form', 'pw_edd_force_billing_address' );