[AZ-AlphaXi]

Quote from the NPC Manual of Information

If Preferential Bidding is used, women who indicate an Intentional
Single Preference and do not receive an invitation to membership are
eligible for Snap Bidding and Continuous Open Bidding, but are not
eligible for Quota Addition.
Resolved (1995), That a Potential New Member who withdraws from
the Fully Structured Recruitment process before the signing of her
membership acceptance shall be eligible for Snap Bidding and
Continuous Open Bidding.