Change coupon label in WooCommerce

snippets.php

//The following snippet will be useful when you want to display the rule name instead of the standard Coupon: Discount
//while using the Woo Discount Rules plugin

if(!function_exists('woo_applied_cart_rules')) {
	function woo_applied_cart_rules($cart_rules_object){
		global $applied_rules;
		$applied_rules = array();
			if(isset($cart_rules_object->matched_discounts)) {
				global $applied_rules;
				$applied_rules = $cart_rules_object->matched_discounts;
			}
	}
}

add_action('woo_discount_rules_after_fetching_discount', 'woo_applied_cart_rules', 10, 1);

if(!function_exists('fc_woo_applied_coupons_in_cart')) {
	function fc_woo_applied_coupons_in_cart($text, $code) {
		//process only for woo discount rules
		if(isset($code->code) && $code->code == 'discount') {
			global $applied_rules;
			$rule_names = '';

			if(isset($applied_rules) && count($applied_rules) && isset($applied_rules['name']) ) {
				$rule_names = implode(', ', $applied_rules['name']);
			}
			if(!empty($rule_names)) {
				//change the value here to have your own customized display
				$text = 'Discounts applied ('.$rule_names.')';
			}

		}
		return $text;
	}
}


add_filter('woocommerce_cart_totals_coupon_label', 'fc_woo_applied_coupons_in_cart', 10, 2);