Is there any info on re-regestering, or where could I find it.
"one more chance" implies "one last chance"
If it were to end after other trivia questions, it would have probably been written like: "You've got another chance on Friday." or "Friday's your next chance."
Think about it this way, a teacher gives you a test every so often, and they say "You have one more chance to pass the test on Friday. Make it count." And you know that you have to pass 1 test a year to pass the grade. (unrealistic, I know, but it symbolizes getting the book.)
Seems like it's your last chance, it implies that it's your last chance, BUT it isn't definite.
Hope for the best (they announce something), but prepare for the worst (they continue them or nothing happens at all).
This thread seems like a great place to study English grammar.