Telkom cannot deliver advertised goods

I app**** for a Smartbroadband Wireless contract on the 18th September. After two weeks I enquired and was told there was a technical problem and received no further info since. Apparently the B593 router is not available and nobody at Telkom knows when it will be available. Why do you sell products you cannot deliver and even worse fail to advise new customers of the problem? After 6 weeks still no service from Telkom.