Poor service for a Hospitality Industry

I have been calling the Sun International contact center for a few weeks now. Nobody answers the phone. All I get is being on hold and listening to Sun International advertising their business. Ironic to be an Hospitality industry but have a Contact Center where phones are unanswered. I have sent emails asking for someone to call me. The only reply I got was asking for hotel and guest details, which has nothing to do with my request I merely asked for someone to call me back as I cannot get thru their phones.