I am struggling to understand the benefit of this.
Please correct me if I am wrong.
I book 10 flights at predetermined prices where I choose my flexibility (e.g. 7 days).
If I change my flight 7 days before the flight, then I can reschedule at the same cost, even if the fare of the next flight is more expensive.
If I change my flight less than 7 days before, I pay the extra fare.
Is that correct?
So the benefit is that you lock prices for up to 7 days ahead of the scheduled flight?