Worst furniture delivery service EVER!!!!

We purched nearly R30 000's couches almost a month ago in the Highveld Mall store in Witbank. We spesifically arranged for delivery 3 weeks after purchase on a day that we are home to receive the delivery and they agreed to this day and date and added it on their order form. That date has cone and gone and we still have not recieved our couches and the shop is full of lame excuses.. We phoned head office they promised to help and send our couches today.. Today has come and gone and still no couches. Head office and the shop is rejecting all our calls now.. What the hell!!!!! This is the worst customer service ever..