This is not a technical issue or glitch.
Celebrity customers like Thief, Witch, Alien, etc is programmed to come at certain intervals, and some come more frequently than others. Here are some things you can do to increase your chances of seeing that customer:
- You can buy a Celebrity Hot Spot, make sure it's charged, and put it in your store.
- Don't forget to keep your market open and your shelves stocked all the time.
- Launching campaigns help a lot. More customers mean more celebrities.
Don't forget, these quests are mean to be challenging. Please try the steps above, before submitting a ticket.