For determining winners, some mathematical calculations are done.
In the case the picked user has won one of previous prizes, calculations are done again.
I've only just thought of the question now, don't know why I never thought about it before:) If I was already drawn as a winner are all my other tickets disqualified or are they still in the running for the next prize and then calculations redone if a winner's tickets are drawn again?
Just asking because, if I won 10th prize, but was drawn again for 1st prize. Do I win the bigger prize or am I disqualified for that?
In fact... are all prizes drawn at the same time? And if multiple winning entries, do we get the bigger one?
Curious now:)