Received wrong goods, Vodacom does not do return!

On 22/02/2016 I upgraded my contract speaking to Shane. He issued me invoice U939205. I was supposed to receive a Power Tab 10 With Bluetooth keyboard. He sent a Power Tab 10 and invoiced for one as well but did not included the keyboard. The day I received the Tab I phoned and Shane was not available they said he would phone me the next morning early. The next day he did not phone and at about 12 I phoned, he was not available and they said he will call back. He never called back. On 25/02/2016 I said I would hold to speak to him, he told me he would have to first look at the transcripts. There was only one upgrade to the Tab 10 and it included the keyboard. I phoned on Friday and he said he would send RAM to collect the Tab, once they received the Tab back they would send the correct Tab. Tuesday I wanted to know why RAM had not collected. Wednesday I phoned RAM but they had no instructions to collect. I phoned Shane and I asked him to send the Tracking number to my phone. Guess what, no tracking number was received on my phone and Shane has not phoned. The 14 days are almost up. Is he trying to hide his mistake at my cost? Please send me my correct goods! Fetch your mistake!