Have you been rolling and not receiving tickets? The reason for this is there is a daily limit for collecting tickets in-game. That total daily limit is 15,000. Here is a little more detail on how that works:

Gameplay (daily limit) 5,000 tickets - Roll around your board to earn tickets from prize spots, the ticket tiles, and bonus games.
IAP Bundles (daily limit) 10,000 tickets - Claim tickets bundled into special, limited-timed in-app purchase offers.

* There is a limit of 15,000 earned Tickets per person per day, regardless of the method of obtaining Tickets.