What happens if my bounty time expires?
I posted a 100 point bounty for this question but the bounty expired while the question remained unanswered. The 100 points however were never returned to my account. How to fix this?
As the FAQ section on bounties states,
In any case, you will always give up the amount of reputation specified in the bounty
Alternately, see the info section about the privilege level that grants one the ability to give bounties:
Please note that once a bounty is started, the reputation is non-refundable under any circumstances.
So, I'm afraid your 100 points are lost.