Presto Card was under extreme scrutiny by transit users who were migrating from their monthly transit passes to Presto's cash$-$deduction system. Although Presto published its discounting system, which would begin to charge less within a month based on the number of times a commuter had taken a specific route, commuters were still disgruntled. It was only after Presto launched it free$-$transfer program and monthly pass program that most commuters began to migrate fully to the Presto system. Presto created a marketing mix based on what type of segmentation?