All cancellations requests must be made in writing to firstname.lastname@example.org.
Requests received before Sept. 28, 2020 will receive a full refund.
Requests received between Sept. 28, and Oct. 19, 2020 will receive a 50% refund.
Refunds will not be issued after Oct. 19, 2020
If hotel rooms have been reserved in the SIGMA block, they must be cancelled prior to receiving any eligible refund.