This is a fair point, but you could at least attempt to watch the Leopards/Tigers instead (dependant on your route out)... They went to GS to ask about the refund, which makes sense, but parks very rarely give out refunds/free tickets to return unless there are extreme cases which cause mass closures (so for example, powercuts), indeed, the T&Cs do say that all tickets are non-refundable, evidently though if they didn't get what they wanted, they may well have increased rage, which never gets you anywhere in my opinion (although this is arguable again, but if people ever had a go at me for following rules, they got bugger all)...