DSTV explorer out of stock

I signed a new contract (first time customer) on 7 April 2015, the 10mbs line, 50GB internet contract with free DSTV explorer. Aside from my internet at home only starting to work yesterday (13 May 2015), I still haven't got the explorer. I put my name down on the list at the store and was told there would be stock by last Friday, still haven't heard from them, and can't get through to them (phone either rings non-stop or is engaged). I would like to know when I'll actually get the products I am paying for!