Telkom complaint: Out of Stock device

I did an online upgrade after many messages from Telkom that i was due, completed all forms and received a call from someone who verified and ed all my details, then received a message to say the required device was out of stock and they would keep me updated, today received another call from someone that wanted to do the whole ation of my order again, and she also ed the device is still not in stock, however the device is still being advertised as an option??
Don’t these people communicate with one another how many more people must i give my details to??
Don’t even try call that is an impossible task to get to anybody that can actually assist you, i tried to cancel 2 subscriptions and still am not sure if they have been cancelled or not!!!
Telkom is probably one of the worst service providers and i will be cancelling my entire contract!!!