If you have to cancel, a refund of the registration fee (less a $150 processing charge) will be granted if cancellation is received by December 8, 2017. The fee is $350 if cancellation request is received by January 11, 2018. NO REFUND OR CREDIT will be granted if cancellation is received after January 11, 2018. Substitutions are permitted. Cancellations must be submitted in writing via email to firstname.lastname@example.org.