Bad service during upgrade

Phoned last week for an upgrade, did the upgrade, confirmed it the following day, was told by the agent that it would take 3 -5 days for delivery. Phoned today to find out if they have a tracking number for me, only to be told that the device is now on back order? why wasn't I told this during the upgrade?

Now all I can do is wait, my issue is that NO ONE from Vodacom gives a damn about there clients. NO ONE thinks that maybe I should let the client know that his/her device is no longer in stock and it will take a few days/weeks to get it.

Seriously disappointed, been a client since 2004.