How to Waitlist Singapore Suites, First, and Business Class When Saver Space is Unavailable

Singapore Airlines offers an efficient and convenient way to waitlist Saver award space on most flights in any cabin when Saver space is unavailable.
What is Waitlisting?
Singapore Airlines has three prices for award space in each cabin on each route: Saver, Standard, and Full.

Saver is the cheapest, around one-fifth to one-eighth of the price of Full.