STILL NO STOCK AND NOT ANSWERING THEIR PHONES!!!

Really getting frustrated with the poor service delivery from Telkom Mobile Mall@Reds, and Telkom's supply chain and other shops for that matter. I ordered a Samsung Galaxy S6 a week ago at the walk in store, and they did not have stock of any phones except one phone which was not the one I wanted, and they still have no stock, and the supply chain blames it on they are awaiting stock from manufacturer which I know is a blatant lie. I am a consumer and I have my rights and I will take action if this matter is not resolved soon. Why are they also not answering their phone? I know it is a walk in store, but why list the number, if they cant even pick up the phone once. Also the store managers' email address is not working as her email inbox is full and cannot receive mails. This clearly indicates the people their aren't doing their jobs. Please can someone tell me DEFINITELY when the shop I app**** my contract with, will be getting stock of the Samsung Galaxy S6