Very very bad service!

I went in to purchase a new phone on contract at Incredile Connection, The Glen Shopping mall. I was assisted by Khanyi. She took over three hours to assist me claiming her system is slow. I then received a contract phone which was Friday afternoon. My phone has not worked since as the sim card claims to not be activated. I went to vodacom and they refused to help me and told me to return to incredile connection. Monday afternoon Khanyi from incredible connection calls me apologizing as she made a mistake with the sim card, admits that it was not connected and claims the number is being used by someone else. She asks me to return to their shop on Tuesday. (today).... Upon arrival I'm told Khanyi is not at work and no one else can assist me as she's the only person who deals with contracts. Yet she is the one who called me and told me to come. I left with no assistance at all and still don't have a working phone yet m paying for this ****py service. I have to use my petrol and time again to return for the third time because someone failed to do their job right twice!