Originally Posted by
SeamusSA
You cannot wait list for SaverPass. You can book coach now and vigilantly monitor for SP to become available, call to redeposit your current and snag the SP. Problem is both OB and IB may not become available at the same time.
This is not entirely true. If there are Y seats available you can redeem a BF reward, seated in Y, and waitlist for the BF seat. It is known as "Plan B" and there is a rather detailed explanation in the FAQ.