Any experience getting a refund for the unflown final segment of a ticket booked with UR points?

I have a multi-segment on 4Y and do not plan on using the final leg (plans changed and we just no longer need it, but we will fly the earlier legs as-booked). Booked in a fully refundable fare and the fare rules as I can see them seem to indicate it is just three one-way fares, but all on the same resv. All the flights are multiple days apart from each other.

I'm happy to just forfeit the points if that's what ends up happening, but of course would love to get some points back if possible.