Wrong upgrade done - cant get hold of upgrades dep

On 05/01/2016 I spoke to Lindy (Reference no ***). I am still waiting for a copy of this upgrade contract and the contact details of the guy who did the Upgrade. This contract is supposed to be TOP UP, but it is not and I cannot load BIS. The Samsung Tablet that was sent is not the correct tablet and the 500mb contract @ 39pm was not activate. I have been trying to get through to the Upgrades department without success and no-one else seems willing or able to assist. This is Pathetic leave. I want to cancel this contract as it is still within the 14 days. Hopefully I will get some feedback today from someone who can actually assist. IT IS A MISSION TO GET SOME ONE TO ANSWER AT MTN DIRECT ***