You must have a racer witness with you when you protest a result. Get out of your wet and dirty clothes as soon as you can. Eat a combo of protein and carbos within 30 minutes after finishing and re-hydrate. All events have a beginner raffle. Your race number is your raffle number so bring it with you after cleaning up from a race when you go to check the results.
Some races have a separate junior raffle.
Check the postings at the awards area and registration to find out. It is your responsibility to collect your award or prize. It is not the promoters responsibility to mail you your prize without the request and the fee.