You will receive an invoice in PDF format emailed to the address you enter on checkout. If you book a sharing option but do not have a sharing partner, WBS will assign a partner for you. In instances where no sharing partners are available, you will have to upgrade to a single room booking. WBS can not provide a payment plan, we require a single payment in full to secure your position on the tour. Deferrals are only allowed in extreme circumstances, please complete the deferral form if you wish to defer your tour.