Still waiting for stock

I upgraded my 3 Gig (3G) contract with Vodacom Vanderbijlpark including in upgrade was a wi fi modem and hard drive, no stock was availible but on request when stock would be availible was informed mid February, on the 17 Feb phoned them again and was informed that the no date can be given as the information that was availible said that they are waiting for supplier. The personnel of Vodacom Vanderbijlpark was incredible helpfull and must coment them on that, my problem was logged on Vodacom website and only feedback was a sms telling me what i already know that there was no stock, now more than a month later and still waiting for the stock, my upgrade to a 5 Gig (3g) did not go through in the beginning in March. What is going on will there be stock and when Vodacom headoffice must please provide me with answers.