How do I access quests to move between levels in Candy Crush Saga?

When I reach the end of a level and the "railroad tracks" appear, I am given the option of asking friends or purchasing access to the next level.  Only one time was play quests one of the options.  I played and passed the first quest, and window said next one would be available in 24 hours.  However, it is 3 days later and I still cannot figure out how to access the next quest.  Suggestions, please.