track of your personal 'Treasure-Points'. They determine your 'level' (i.e. your
skill level and the skill level of those you're competing against!)
Everyone, when you first register, gets a 'starter': 50 points. If, in any week you don't play, 10% of your points will be deducted (with your remaining points rounded up if there is a fraction involved), so make sure you get in there regularly!
Different prizes are available in different prize "categories". The more points you accumulate, the higher the prize category you can select from. So, at any point, you have a choice, to redeem some points for a prize, or keep going, accumulating more points, to get to a higher category and try to grab a better prize!