How To Get "Casino Dealer"?

I am sure lots of players who already entered Vegas got the same problem..
It is on the District 2 - Paradise City.. you will have to mastered a Property job ie Recruit A Table Game Dealer job.

See the screenshot, please..

Somehow, I have done the job and now I am on the Gold mastery level but I have not found a single Casino Dealer drop from the job yet!
Somehow, I have done the job and now I am on the Gold mastery level but I have not found a single Casino Dealer drop from the job yet!

Everytime I want to upgrade my Table Game Property, I have to use my Reward Points to buy this part of my building..

Since this Las Vegas is still on beta.. please Zynga team.. fix the glitch, specially this one.. I really want to have my Casino Dealer from that job above..

Thanks in advance, team!

PS : Thanks to Fahmi for sharing the info..