At the time of purchasing this "multi buy 4 class passes for £35" you must book at least one class date. You can book more class dates at this time if you wish or book additional classes in the future. In the future the system remembers your email address and knows how many class passes you have left so that you can book remaining class dates. Once class dates are booked you will be able to log in and transfer booked class dates if required up until 6 hours before the class begins, after this time transfers are not available. Only transfers are offered, cancellations and refunds are not offered.