Very poor service and no feedback at all

Good day<br> my nissan navara 2010 broke down on 30/08/15.Went to highveld Nissan in Secunda on 31/08/15 Monday the lady at the counter were very helpfull and my navara were collected at at my house and brought to the workshop.thats where everything stoped i had to make 100 phonecalls to find out whats wrong with the navara i was promised the bakkie wil be fixed and ready on wednesday 02/09/2015.Wednesday came no parts as i was promised the parts will be there on wednesday .friday today and geuss what STILL NO PARTS .AFTER I WAS PROMISED BY NISSAN SOUTH AFRICA THAT THE PARTS WILL BE HERE THIS MORNING.I CAN NOT DO MY WORK AS I AM N SERVICE PROVIDER TO SASOL SECUNDA AND NEED MY BAKKIE TO TO MY WORK .i have never seen poor service like that.i had one phone call the whole week from nissan yesterday just to tell me that the part has not arrived.this will be my last nissan