No feed back on Back order

On Saturday 6 February I upgraded my top up data package On Monday 8 February I queried the delivery date and was told the Extender included in the Package were on back order and that he delivery would be as soon as<br> stock were received which were expected any time. On 11 February a gentleman phoned to inform me that the extender would available by Friday 19 February and that the Router will in the mean time be released for delivery that same day The extender would be delivered shortly after 19 February. I received the Router on Monday 15 February but currently nobody can give a delivery date for the extender or even if they have stock of the item. Promises to phone me back with info are never honored. Can someone at Vodacom please commit and inform me of the delivery date of the item. It is a condition of delivery that you be available to receive the delivery. Without a delivery commitment by Vodacom that would not be possible.