Bad customer service

Their after sales customer service is shocking and the worst place to deal with.I submitted a refund claim for something that was meant to be sorted out at the Dealership before we purchased the car and it was not. I sent the email and everything that was needed to a man by the name of Yul Carlinsky who told me that he will be in touch with me, a week goes by and I hear nothing, I email him numerous times and he never replies to emails, I call and spend so much of my airtime on hold and half the time when I want to speak with him he is too busy - He never calls back . The one day I finally get to speak with him and he tells me I will receive my money the next day - NOTHING and its been a week, i call all the time and email him all day everything and he can not even bother to reply or let me know, When I call to speak with a manager they too do not get back or tell me I will look into this, This is HORRIBLE customer service and no way to treat your customers, Please do yourselves a favor and do not deal with Yul