Bad customer service from waiters

Waiting 3 hours just to get n waiter at a blackjack table.. Dealer tell u to clap your hand if u want a waiter.. We got the whole somking area to clap and no waiter still after 3 hours.. When the waiter arrives u wait anoutber hour for your drink to arrive.. Awesome casino but lack of service is form waiter is unacceptable.... Been there 2 nights in a row and same bad service.