Complain about grandwest who dont give people fair chance to win

Grandwest dont give people fair chances to win. They are rob please with the fact that they have 6 decks of cards in their black jack switch machine where they usally had 5 decks of cards and on the roulette machine when the ball goes into a number all of sudden they blew the ball out of nr. Ww the players have seen if with our own eyes how they blew ball out of nr. We are just loosing and loosing at grandwest. I have contacted the gambling board but they told me i must complain to grandwest because they a licenced casino