Cancellation policy Cancellation requests must be submitted in writing/email and received prior to 4th August, 2023. Registration fees will be forfeited by any delegate who does not cancel in writing by the closing date. Substitution of registration is permitted at the same category level once ASVP has been advised in writing of the full name and details of the substitute. No partial refunds will be given for sessions not attended. Refunds will not be paid until after the conference/course/event has been conducted.