I’ve just had a long haul flight for next year cancelled booked via miles.

We were planning on cancelling anyways so not an issue. That said, I assume a) this means I can get a full cash refund on cash component, but b) if I want to rebook, does this open up for any flight? Ie I can get rebooked to the same destination without issues. I know results vary, but we want a different date and ideally direct from OSL. Or is it more than 14 days out, so lost.