Unacceptable service - No stock or delivery on devices advertised when upgrading contract!

I upgraded two of my data contracts in store, and selected Apple Ipads as the devices. I opted to upgrade to more expensive contracts because I wanted the Apple products. It has been a week since upgrade and I still do not even have delivery date because Telkom does not allocate stock to the stores - I am being told that there is no stock on Apple products. Why are products then advertised when there is no intention of keeping stock??!! I have also been told that if I upgraded online, I would have my devices within a week but because it was done in store - Telkom does not supply the stores with stock. The store's service is excellent and they are trying their level best to help me but Telkom head office's response are that they cannot get Apple devices and that they must try and sell me another product. This is completely unacceptable and I will ensure that nobody that I know makes the same mistake with going with a Telkom Mobile contract - you will end up pulling your hair out because of their bull**** stories.