IZM
Normally, in previous years, the offers are delivered in three rounds (I.e. offers that were rejected by the highest ranking students in round 1 are delivered to the next highest group of students who missed out in round 2. If a person rejects their offer in round 2, then it goes to another person during the time that offers are distributed again in round 3)
This year, though, there are 5 rounds, meaning that this process is repeated two more times (there is a round 4 and a round 5 now) to ensure that as close to every spot is filled as possible.
Hope that makes more sense!
