add_action('woocommerce_before_bid_form', 'custom_number_of_bids_text', 5);
function custom_number_of_bids_text(){
	global $product;
	$bid_count = intval($product->get_auction_bid_count());
	if(absint($bid_count) > 0 ){
		echo "<p class='number-of-bids-text'>";
		printf(__('Bids: %d' , 'wc_simple_auctions'),$bid_count );
		echo "</p>";
	}
}