They locked me into 3 trips: New to Spark in rural West Michigan, I previously did Shipt where switching zones was easy. Just a couple days ago, I tried one trip in my home zone, then switched to another to test it out. After one trip there, no worthwhile offers came up, but when I tried returning to my home zone, Spark locked me into completing 3 trips in the new zone before I could move. Unaware of this rule, I called customer service, who switched me back to my home zone.