SPECIALS BUT NEVER STOCK

Telkom Mobile has the unlimited special with the Huawei P8 Lite for R199 per month but none of the franchises has stock. They either ell u the waiting period is two weeks or like in my case. I went to the Direct store in Tygervalley last Thursday, the 8th and was told that their devices should arrive by Monday 12 October for the latest. why have a special if there is no stock? I was advised by their Century City branch that if the stock arrives after the special, then you cannot get the deal anymore. Is this poor planning or just bad service? I really think that it's unfair that customers have to wait so long for devices but have to pay their contacts on time. How can this be resolved?