Upgrade issue

My telkom contract has been eleigible for a upgrade for 1 month, I have visited telkom stores in CPT 2 of the, Seapoint and Waterfront store aswell. Each store had no more than 2 laptops in stock after being told i must be in store to upgrade and they must have stock. I have called to complain and keep getting directed to a mythical sales person who i never get answered after waiting on hold for 45m-1hour, I then complained on the Facebook page and was told i would be contacted and it would be expedited and now still waiting for a call back or response. How do you advertize and print so many pamphlets for stock you clearly don't have why do some customer wait 2 months for a macbook I am beyond irritated and all want is to upgrade and pay telkom more money but the service is extremely bad the worst ever. This is for a laptop upgrade.