automatic fee void/refund upon event withdrawals

It would be really helpful if there was a way to have a fee voided/refunded if someone withdraws from an event, as long as they adhere to the cancellation policy. I have had several occasions where either a member withdrew from an event themselves or I withdrew them from the event, and they were still charged a fee. I have also noticed that sometimes the fee is automatically voided, and sometimes it's not, which has been very confusing. It would be helpful to have consistency with that feature. 

It would also be helpful to be able to preset it to happen automatically according to the cancellation policy, and to make it an option that comes up on the admin end while withdrawing members on their behalf, so if we decide to make an exception for a violation of the cancellation policy when withdrawing members .