cheated and **********

i went to Vodacom on the 25th of February to open a 2GB a month contract, the consultant by the name of Brian advised me to rather take the 2 deal where i get a tablet and smartphone, i told him that i have a device and just wanted data, he advised me that i would get 500 mb and R200 airtime which i could convert into data. I took it as i felt it was a good deal, however something felt a miss as i didnt get any sms or notification to say that i had been acitivated on contract, i went back to the store 2 days later to ask if i was getting any pro rata data, Brian explained to me that everything would come through on the first and that he had made a mistake on my contract but i shouldnt worry about it. On the first of March nothing came through, i called the call center and they advised me that i was not activated and was still on prepaid. i went back to Brian and after a long conversation with authorisations department i was activated. i recieved a sms notification but was puzzled that i only recieved 110 airtime instead. I called Brian and he informed me once again i should be recieving R200 airtime. this morning he calls me to say that is not the case and that he made a mistake.