DIBS for WooCommerce - filter the language parameter sent to DIBS.

wc-dibs-filter-language

/**
 * DIBS payment gateway for WooCommerce 
 * Filter the language parameter sent to DIBS.
 * Useful when you want the language of the DIBS Payment Window to match the language in your WooCommerce store.
 *
 **/
 
add_filter( 'dibs_language', 'my_dibs_language' );

function my_dibs_language() {
	// Get ISO language code
	$iso_code = explode('_', get_locale());
	
	return $iso_code[0];
}