You have just found out that one of your most loyal, long standing and high value customers has been telling new customers not to play..[Show Details]?

Explain to the customer in a very calm and understandable way that it is against the policy. and Try offering some other privileges. 

It is really difficult to work with or handle egoistic people or people with very strange personalities, mannerism & characters; sometimes you need to professionally involve management to help you sort out such problems because confronting such people could make you loose your job- "big custmer's word" against an "employee's word" before management could cost you your job although the customer is in the wrong. On the hand, you can politely talk to them & try to make them understand your position, if they fail to listen or understand then you can forward your issue to mgt.

Thanx for the invitation

Talk to him :) You can also show him another slot machines and he might have new favorites :)

http://people.bayt.com/ahmed-taha-24827543/

i am agree with ahmed taha answer ,,,, thanks for invitation

Agree on experts answers, Thanks for your invitation.