Non-fulfillment of Pending Order

We have been struggling to initiate a new business contract with Vodacom. We placed an online order on 28 May, and have had to follow-up repeatedly for action over the past 7 weeks. We left another 2 messages (once again) last week Thursday and Friday to be called back by the only person who seems to be allowed to deal with our order, but we wait once again with no follow-up. We still have no idea when our business phone will be delivered. This phone is required urgently. Could someone at Vodacom please either arrange for us to receive our order (1,5 months later) or arrange for the order to be cancelled so that we can place an order with another company?