Fed up with Vodacom

So very disappointed in Vodacom.. Twice now you guys have wasted my time.. First I app**** for a new laptop contract where I was told you guys have stock.. When I phoned to check what is happening I was told my order is on back order due to no stock.. Why in the first place tell me there is stock and not let me know that there no longer is stock available and my order is on back order I had to phone to find this out.. Today again I was told I can upgrade my number to a laptop deal and was told you guys have stock on the lenovo I7 and surprise suprise when I phoned again there was no stock available again.. I am so fed up.. I need to upgrade before the 1st of April otherwise I go on month to month.. I do not want a new phone or just a airtime contract.. Seems I have to think about canceling my contract with Vodacom because I only get messed around. And worst off all is you keep phoning me to upgrade but you don't have stock and all I hear from the consultants is we don't know..