How does a guest receive the $100 voucher for the Spa at Seabourn?

For eligible Club Members the USD $100 credit for the Spa at Seabourn will be applied to your shipboard account the day of embarkation and is applicable to any treatment and/or product offered at the Spa at Seabourn. The $100 credit will extend throughout your entire time onboard. The credit is non-transferrable, cannot be redeemed for cash and cannot be used in other onboard venues.