Only one type of discount in addition to early booking discounts can be applied to each booking. If there is a discount associated with the VIP code you enter below, this will take priority over the multi-booking discount unless the multi-booking discount is bigger. So you will always benefit from the biggest discount available to you. Discounts can only be claimed at the time of registration.
We are happy to accept a replacement delegate for the whole event. Delegates passes cannot be split or shared between delegates.