Bought phone with benefits not recieved at all

On 02/12/2015 at 10h00 i bought n Vodacom \Smart Kicka"phone at Pep Cell at the workshop in Durban with sim card and tel no ***. It was clearly advertised on the windows of Pep cell \""FREE 100 MB X3 ON PREPAID\"" i checked on the box which is pre packed by Vodacom and it has an big red sticker on it which says the same. It is now in excess of 48 hours and it has not yet been loaded. I called the call centre 082111 on 5 occasions and no one can give me any any answer besides that nothing on the system shows that i must get these Mega Bytes. The Manageress of Pep Cell also phoned them from my phone and informed them of the situation and i spoke to the agent who logged an inquiry and asked me for my alternative Vodacom no which i gave him. In my experience with with Vodacom you can log as many queries as you like they have never gotten back to me as in this case again. I have also noted Vodacoms MB bundles are almost double the price than cell C also on Vodacom you get charged normal Rates for Facebook and Whatsapp in the case of cell C Facebook is 100% free and whatsapp has an once off fee of R5. MY QUESTION IS"